Home / 125,019.48-172,525.14-71,305.38

Finding the Fourth Proportional to 125,019.48, 172,525.14 and 71,305.38

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Solution

The fourth proportional to 125,019.48, 172,525.14 and 71,305.38 is: 98,400.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,019.48 : 172,525.14 = 71,305.38 : x
  2. Step 2: Convert to fraction form
    125,019.48/172,525.14 = 71,305.38/x
  3. Step 3: Cross multiply
    125,019.48x = 172,525.14 × 71,305.38
  4. Step 4: Simplify right side
    125,019.48x = 12,301,970,667.25
  5. Step 5: Solve for x
    x = 12,301,970,667.25/125,019.48
  6. Step 6: Final answer
    x = 98,400.43

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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.