Home / 156,542.25-216,028.32-89,487.21

Finding the Fourth Proportional to 156,542.25, 216,028.32 and 89,487.21

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Solution

The fourth proportional to 156,542.25, 216,028.32 and 89,487.21 is: 123,492.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,542.25 : 216,028.32 = 89,487.21 : x
  2. Step 2: Convert to fraction form
    156,542.25/216,028.32 = 89,487.21/x
  3. Step 3: Cross multiply
    156,542.25x = 216,028.32 × 89,487.21
  4. Step 4: Simplify right side
    156,542.25x = 19,331,771,637.79
  5. Step 5: Solve for x
    x = 19,331,771,637.79/156,542.25
  6. Step 6: Final answer
    x = 123,492.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.