Home / 136,869.03-205,432.68-70,355.85

Finding the Fourth Proportional to 136,869.03, 205,432.68 and 70,355.85

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Solution

The fourth proportional to 136,869.03, 205,432.68 and 70,355.85 is: 105,600.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,869.03 : 205,432.68 = 70,355.85 : x
  2. Step 2: Convert to fraction form
    136,869.03/205,432.68 = 70,355.85/x
  3. Step 3: Cross multiply
    136,869.03x = 205,432.68 × 70,355.85
  4. Step 4: Simplify right side
    136,869.03x = 14,453,390,819.18
  5. Step 5: Solve for x
    x = 14,453,390,819.18/136,869.03
  6. Step 6: Final answer
    x = 105,600.16

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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.