Home / 125,110.82-172,610.06-71,357.18

Finding the Fourth Proportional to 125,110.82, 172,610.06 and 71,357.18

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Solution

The fourth proportional to 125,110.82, 172,610.06 and 71,357.18 is: 98,448.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,110.82 : 172,610.06 = 71,357.18 : x
  2. Step 2: Convert to fraction form
    125,110.82/172,610.06 = 71,357.18/x
  3. Step 3: Cross multiply
    125,110.82x = 172,610.06 × 71,357.18
  4. Step 4: Simplify right side
    125,110.82x = 12,316,967,121.23
  5. Step 5: Solve for x
    x = 12,316,967,121.23/125,110.82
  6. Step 6: Final answer
    x = 98,448.46

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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.