Home / 113,030.40-169,545.60-66,259.20

Finding the Fourth Proportional to 113,030.40, 169,545.60 and 66,259.20

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Solution

The fourth proportional to 113,030.40, 169,545.60 and 66,259.20 is: 99,388.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,030.40 : 169,545.60 = 66,259.20 : x
  2. Step 2: Convert to fraction form
    113,030.40/169,545.60 = 66,259.20/x
  3. Step 3: Cross multiply
    113,030.40x = 169,545.60 × 66,259.20
  4. Step 4: Simplify right side
    113,030.40x = 11,233,955,819.52
  5. Step 5: Solve for x
    x = 11,233,955,819.52/113,030.40
  6. Step 6: Final answer
    x = 99,388.80

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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.