Home / 98,721.02-136,234.49-53,398.95

Finding the Fourth Proportional to 98,721.02, 136,234.49 and 53,398.95

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Solution

The fourth proportional to 98,721.02, 136,234.49 and 53,398.95 is: 73,690.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,721.02 : 136,234.49 = 53,398.95 : x
  2. Step 2: Convert to fraction form
    98,721.02/136,234.49 = 53,398.95/x
  3. Step 3: Cross multiply
    98,721.02x = 136,234.49 × 53,398.95
  4. Step 4: Simplify right side
    98,721.02x = 7,274,778,719.79
  5. Step 5: Solve for x
    x = 7,274,778,719.79/98,721.02
  6. Step 6: Final answer
    x = 73,690.27

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.