Home / 98,686.28-148,044.95-42,542.35

Finding the Fourth Proportional to 98,686.28, 148,044.95 and 42,542.35

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Solution

The fourth proportional to 98,686.28, 148,044.95 and 42,542.35 is: 63,820.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,686.28 : 148,044.95 = 42,542.35 : x
  2. Step 2: Convert to fraction form
    98,686.28/148,044.95 = 42,542.35/x
  3. Step 3: Cross multiply
    98,686.28x = 148,044.95 × 42,542.35
  4. Step 4: Simplify right side
    98,686.28x = 6,298,179,655.34
  5. Step 5: Solve for x
    x = 6,298,179,655.34/98,686.28
  6. Step 6: Final answer
    x = 63,820.21

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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.