Home / 113,387.40-169,876.30-100,280.20

Finding the Fourth Proportional to 113,387.40, 169,876.30 and 100,280.20

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Solution

The fourth proportional to 113,387.40, 169,876.30 and 100,280.20 is: 150,239.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,387.40 : 169,876.30 = 100,280.20 : x
  2. Step 2: Convert to fraction form
    113,387.40/169,876.30 = 100,280.20/x
  3. Step 3: Cross multiply
    113,387.40x = 169,876.30 × 100,280.20
  4. Step 4: Simplify right side
    113,387.40x = 17,035,229,339.26
  5. Step 5: Solve for x
    x = 17,035,229,339.26/113,387.40
  6. Step 6: Final answer
    x = 150,239.17

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.