Home / 162,425.09-243,637.70-87,580.47

Finding the Fourth Proportional to 162,425.09, 243,637.70 and 87,580.47

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Solution

The fourth proportional to 162,425.09, 243,637.70 and 87,580.47 is: 131,370.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,425.09 : 243,637.70 = 87,580.47 : x
  2. Step 2: Convert to fraction form
    162,425.09/243,637.70 = 87,580.47/x
  3. Step 3: Cross multiply
    162,425.09x = 243,637.70 × 87,580.47
  4. Step 4: Simplify right side
    162,425.09x = 21,337,903,837.82
  5. Step 5: Solve for x
    x = 21,337,903,837.82/162,425.09
  6. Step 6: Final answer
    x = 131,370.74

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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.