Home / 126,129.54-173,877.91-99,225.32

Finding the Fourth Proportional to 126,129.54, 173,877.91 and 99,225.32

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Solution

The fourth proportional to 126,129.54, 173,877.91 and 99,225.32 is: 136,788.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,129.54 : 173,877.91 = 99,225.32 : x
  2. Step 2: Convert to fraction form
    126,129.54/173,877.91 = 99,225.32/x
  3. Step 3: Cross multiply
    126,129.54x = 173,877.91 × 99,225.32
  4. Step 4: Simplify right side
    126,129.54x = 17,253,091,260.68
  5. Step 5: Solve for x
    x = 17,253,091,260.68/126,129.54
  6. Step 6: Final answer
    x = 136,788.66

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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.