Home / 123,207,126.70-184,748,412.92-72,104,498.86

Finding the Fourth Proportional to 123,207,126.70, 184,748,412.92 and 72,104,498.86

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Solution

The fourth proportional to 123,207,126.70, 184,748,412.92 and 72,104,498.86 is: 108,120,301.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,207,126.70 : 184,748,412.92 = 72,104,498.86 : x
  2. Step 2: Convert to fraction form
    123,207,126.70/184,748,412.92 = 72,104,498.86/x
  3. Step 3: Cross multiply
    123,207,126.70x = 184,748,412.92 × 72,104,498.86
  4. Step 4: Simplify right side
    123,207,126.70x = 13,321,191,728,776,948
  5. Step 5: Solve for x
    x = 13,321,191,728,776,948/123,207,126.70
  6. Step 6: Final answer
    x = 108,120,301.85

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.