Home / 98,720.02-136,233.11-53,397.95

Finding the Fourth Proportional to 98,720.02, 136,233.11 and 53,397.95

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Solution

The fourth proportional to 98,720.02, 136,233.11 and 53,397.95 is: 73,688.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,720.02 : 136,233.11 = 53,397.95 : x
  2. Step 2: Convert to fraction form
    98,720.02/136,233.11 = 53,397.95/x
  3. Step 3: Cross multiply
    98,720.02x = 136,233.11 × 53,397.95
  4. Step 4: Simplify right side
    98,720.02x = 7,274,568,796.12
  5. Step 5: Solve for x
    x = 7,274,568,796.12/98,720.02
  6. Step 6: Final answer
    x = 73,688.89

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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.