Home / 125,255.20-172,853.60-71,547.36

Finding the Fourth Proportional to 125,255.20, 172,853.60 and 71,547.36

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Solution

The fourth proportional to 125,255.20, 172,853.60 and 71,547.36 is: 98,736.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,255.20 : 172,853.60 = 71,547.36 : x
  2. Step 2: Convert to fraction form
    125,255.20/172,853.60 = 71,547.36/x
  3. Step 3: Cross multiply
    125,255.20x = 172,853.60 × 71,547.36
  4. Step 4: Simplify right side
    125,255.20x = 12,367,218,746.50
  5. Step 5: Solve for x
    x = 12,367,218,746.50/125,255.20
  6. Step 6: Final answer
    x = 98,736.17

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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.