Home / 118,280.20-176,988.30-87,176.20

Finding the Fourth Proportional to 118,280.20, 176,988.30 and 87,176.20

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Solution

The fourth proportional to 118,280.20, 176,988.30 and 87,176.20 is: 130,445.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,280.20 : 176,988.30 = 87,176.20 : x
  2. Step 2: Convert to fraction form
    118,280.20/176,988.30 = 87,176.20/x
  3. Step 3: Cross multiply
    118,280.20x = 176,988.30 × 87,176.20
  4. Step 4: Simplify right side
    118,280.20x = 15,429,167,438.46
  5. Step 5: Solve for x
    x = 15,429,167,438.46/118,280.20
  6. Step 6: Final answer
    x = 130,445.90

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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.