Home / 118,532.20-177,366.30-87,428.20

Finding the Fourth Proportional to 118,532.20, 177,366.30 and 87,428.20

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Solution

The fourth proportional to 118,532.20, 177,366.30 and 87,428.20 is: 130,823.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,532.20 : 177,366.30 = 87,428.20 : x
  2. Step 2: Convert to fraction form
    118,532.20/177,366.30 = 87,428.20/x
  3. Step 3: Cross multiply
    118,532.20x = 177,366.30 × 87,428.20
  4. Step 4: Simplify right side
    118,532.20x = 15,506,816,349.66
  5. Step 5: Solve for x
    x = 15,506,816,349.66/118,532.20
  6. Step 6: Final answer
    x = 130,823.66

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1.5x scale

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.