Home / 157,066.86-235,567.17-51,861.90

Finding the Fourth Proportional to 157,066.86, 235,567.17 and 51,861.90

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Solution

The fourth proportional to 157,066.86, 235,567.17 and 51,861.90 is: 77,781.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,066.86 : 235,567.17 = 51,861.90 : x
  2. Step 2: Convert to fraction form
    157,066.86/235,567.17 = 51,861.90/x
  3. Step 3: Cross multiply
    157,066.86x = 235,567.17 × 51,861.90
  4. Step 4: Simplify right side
    157,066.86x = 12,216,961,013.82
  5. Step 5: Solve for x
    x = 12,216,961,013.82/157,066.86
  6. Step 6: Final answer
    x = 77,781.91

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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.