Home / 156,618.90-234,928.35-90,263.70

Finding the Fourth Proportional to 156,618.90, 234,928.35 and 90,263.70

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Solution

The fourth proportional to 156,618.90, 234,928.35 and 90,263.70 is: 135,395.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,618.90 : 234,928.35 = 90,263.70 : x
  2. Step 2: Convert to fraction form
    156,618.90/234,928.35 = 90,263.70/x
  3. Step 3: Cross multiply
    156,618.90x = 234,928.35 × 90,263.70
  4. Step 4: Simplify right side
    156,618.90x = 21,205,502,105.90
  5. Step 5: Solve for x
    x = 21,205,502,105.90/156,618.90
  6. Step 6: Final answer
    x = 135,395.55

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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.