Home / 125,479.02-173,085.03-74,458.20

Finding the Fourth Proportional to 125,479.02, 173,085.03 and 74,458.20

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Solution

The fourth proportional to 125,479.02, 173,085.03 and 74,458.20 is: 102,707.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,479.02 : 173,085.03 = 74,458.20 : x
  2. Step 2: Convert to fraction form
    125,479.02/173,085.03 = 74,458.20/x
  3. Step 3: Cross multiply
    125,479.02x = 173,085.03 × 74,458.20
  4. Step 4: Simplify right side
    125,479.02x = 12,887,599,780.75
  5. Step 5: Solve for x
    x = 12,887,599,780.75/125,479.02
  6. Step 6: Final answer
    x = 102,707.21

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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.