Home / 123,847.40-185,828.70-64,749.80

Finding the Fourth Proportional to 123,847.40, 185,828.70 and 64,749.80

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Solution

The fourth proportional to 123,847.40, 185,828.70 and 64,749.80 is: 97,154.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,847.40 : 185,828.70 = 64,749.80 : x
  2. Step 2: Convert to fraction form
    123,847.40/185,828.70 = 64,749.80/x
  3. Step 3: Cross multiply
    123,847.40x = 185,828.70 × 64,749.80
  4. Step 4: Simplify right side
    123,847.40x = 12,032,371,159.26
  5. Step 5: Solve for x
    x = 12,032,371,159.26/123,847.40
  6. Step 6: Final answer
    x = 97,154.81

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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.