Home / 125,314.68-172,918.27-71,603.18

Finding the Fourth Proportional to 125,314.68, 172,918.27 and 71,603.18

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Solution

The fourth proportional to 125,314.68, 172,918.27 and 71,603.18 is: 98,803.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,314.68 : 172,918.27 = 71,603.18 : x
  2. Step 2: Convert to fraction form
    125,314.68/172,918.27 = 71,603.18/x
  3. Step 3: Cross multiply
    125,314.68x = 172,918.27 × 71,603.18
  4. Step 4: Simplify right side
    125,314.68x = 12,381,498,012.10
  5. Step 5: Solve for x
    x = 12,381,498,012.10/125,314.68
  6. Step 6: Final answer
    x = 98,803.25

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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.