Home / 124,909.56-172,120.14-89,023.32

Finding the Fourth Proportional to 124,909.56, 172,120.14 and 89,023.32

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Solution

The fourth proportional to 124,909.56, 172,120.14 and 89,023.32 is: 122,670.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,909.56 : 172,120.14 = 89,023.32 : x
  2. Step 2: Convert to fraction form
    124,909.56/172,120.14 = 89,023.32/x
  3. Step 3: Cross multiply
    124,909.56x = 172,120.14 × 89,023.32
  4. Step 4: Simplify right side
    124,909.56x = 15,322,706,301.66
  5. Step 5: Solve for x
    x = 15,322,706,301.66/124,909.56
  6. Step 6: Final answer
    x = 122,670.40

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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.