Home / 125,111.10-172,665.75-71,404.26

Finding the Fourth Proportional to 125,111.10, 172,665.75 and 71,404.26

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Solution

The fourth proportional to 125,111.10, 172,665.75 and 71,404.26 is: 98,544.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,111.10 : 172,665.75 = 71,404.26 : x
  2. Step 2: Convert to fraction form
    125,111.10/172,665.75 = 71,404.26/x
  3. Step 3: Cross multiply
    125,111.10x = 172,665.75 × 71,404.26
  4. Step 4: Simplify right side
    125,111.10x = 12,329,070,106.10
  5. Step 5: Solve for x
    x = 12,329,070,106.10/125,111.10
  6. Step 6: Final answer
    x = 98,544.97

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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.