Home / 157,761.20-236,641.80-98,663.60

Finding the Fourth Proportional to 157,761.20, 236,641.80 and 98,663.60

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Solution

The fourth proportional to 157,761.20, 236,641.80 and 98,663.60 is: 147,995.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,761.20 : 236,641.80 = 98,663.60 : x
  2. Step 2: Convert to fraction form
    157,761.20/236,641.80 = 98,663.60/x
  3. Step 3: Cross multiply
    157,761.20x = 236,641.80 × 98,663.60
  4. Step 4: Simplify right side
    157,761.20x = 23,347,931,898.48
  5. Step 5: Solve for x
    x = 23,347,931,898.48/157,761.20
  6. Step 6: Final answer
    x = 147,995.40

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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.