Home / 98,913.88-148,468.02-72,543.52

Finding the Fourth Proportional to 98,913.88, 148,468.02 and 72,543.52

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Solution

The fourth proportional to 98,913.88, 148,468.02 and 72,543.52 is: 108,886.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,913.88 : 148,468.02 = 72,543.52 : x
  2. Step 2: Convert to fraction form
    98,913.88/148,468.02 = 72,543.52/x
  3. Step 3: Cross multiply
    98,913.88x = 148,468.02 × 72,543.52
  4. Step 4: Simplify right side
    98,913.88x = 10,770,392,778.23
  5. Step 5: Solve for x
    x = 10,770,392,778.23/98,913.88
  6. Step 6: Final answer
    x = 108,886.57

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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.