Home / 132,543.04-198,552.16-85,828.80

Finding the Fourth Proportional to 132,543.04, 198,552.16 and 85,828.80

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Solution

The fourth proportional to 132,543.04, 198,552.16 and 85,828.80 is: 128,573.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,543.04 : 198,552.16 = 85,828.80 : x
  2. Step 2: Convert to fraction form
    132,543.04/198,552.16 = 85,828.80/x
  3. Step 3: Cross multiply
    132,543.04x = 198,552.16 × 85,828.80
  4. Step 4: Simplify right side
    132,543.04x = 17,041,493,630.21
  5. Step 5: Solve for x
    x = 17,041,493,630.21/132,543.04
  6. Step 6: Final answer
    x = 128,573.28

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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.