Home / 149,630.83-206,462.32-89,207.12

Finding the Fourth Proportional to 149,630.83, 206,462.32 and 89,207.12

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Solution

The fourth proportional to 149,630.83, 206,462.32 and 89,207.12 is: 123,089.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,630.83 : 206,462.32 = 89,207.12 : x
  2. Step 2: Convert to fraction form
    149,630.83/206,462.32 = 89,207.12/x
  3. Step 3: Cross multiply
    149,630.83x = 206,462.32 × 89,207.12
  4. Step 4: Simplify right side
    149,630.83x = 18,417,909,248.86
  5. Step 5: Solve for x
    x = 18,417,909,248.86/149,630.83
  6. Step 6: Final answer
    x = 123,089.00

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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.