Home / 98,176.40-147,264.60-51,423.20

Finding the Fourth Proportional to 98,176.40, 147,264.60 and 51,423.20

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Solution

The fourth proportional to 98,176.40, 147,264.60 and 51,423.20 is: 77,134.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,176.40 : 147,264.60 = 51,423.20 : x
  2. Step 2: Convert to fraction form
    98,176.40/147,264.60 = 51,423.20/x
  3. Step 3: Cross multiply
    98,176.40x = 147,264.60 × 51,423.20
  4. Step 4: Simplify right side
    98,176.40x = 7,572,816,978.72
  5. Step 5: Solve for x
    x = 7,572,816,978.72/98,176.40
  6. Step 6: Final answer
    x = 77,134.80

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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.