Home / 125,204.51-172,842.08-71,479.15

Finding the Fourth Proportional to 125,204.51, 172,842.08 and 71,479.15

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Solution

The fourth proportional to 125,204.51, 172,842.08 and 71,479.15 is: 98,675.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,204.51 : 172,842.08 = 71,479.15 : x
  2. Step 2: Convert to fraction form
    125,204.51/172,842.08 = 71,479.15/x
  3. Step 3: Cross multiply
    125,204.51x = 172,842.08 × 71,479.15
  4. Step 4: Simplify right side
    125,204.51x = 12,354,604,659.25
  5. Step 5: Solve for x
    x = 12,354,604,659.25/125,204.51
  6. Step 6: Final answer
    x = 98,675.39

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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.