Home / 106,511.40-159,572.70-64,909.80

Finding the Fourth Proportional to 106,511.40, 159,572.70 and 64,909.80

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Solution

The fourth proportional to 106,511.40, 159,572.70 and 64,909.80 is: 97,246.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,511.40 : 159,572.70 = 64,909.80 : x
  2. Step 2: Convert to fraction form
    106,511.40/159,572.70 = 64,909.80/x
  3. Step 3: Cross multiply
    106,511.40x = 159,572.70 × 64,909.80
  4. Step 4: Simplify right side
    106,511.40x = 10,357,832,042.46
  5. Step 5: Solve for x
    x = 10,357,832,042.46/106,511.40
  6. Step 6: Final answer
    x = 97,246.23

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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.