Home / 156,817.86-235,191.32-72,531.77

Finding the Fourth Proportional to 156,817.86, 235,191.32 and 72,531.77

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Solution

The fourth proportional to 156,817.86, 235,191.32 and 72,531.77 is: 108,781.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,817.86 : 235,191.32 = 72,531.77 : x
  2. Step 2: Convert to fraction form
    156,817.86/235,191.32 = 72,531.77/x
  3. Step 3: Cross multiply
    156,817.86x = 235,191.32 × 72,531.77
  4. Step 4: Simplify right side
    156,817.86x = 17,058,842,728.24
  5. Step 5: Solve for x
    x = 17,058,842,728.24/156,817.86
  6. Step 6: Final answer
    x = 108,781.25

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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.