Home / 98,730.33-136,150.77-90,534.55

Finding the Fourth Proportional to 98,730.33, 136,150.77 and 90,534.55

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Solution

The fourth proportional to 98,730.33, 136,150.77 and 90,534.55 is: 124,848.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,730.33 : 136,150.77 = 90,534.55 : x
  2. Step 2: Convert to fraction form
    98,730.33/136,150.77 = 90,534.55/x
  3. Step 3: Cross multiply
    98,730.33x = 136,150.77 × 90,534.55
  4. Step 4: Simplify right side
    98,730.33x = 12,326,348,694.10
  5. Step 5: Solve for x
    x = 12,326,348,694.10/98,730.33
  6. Step 6: Final answer
    x = 124,848.65

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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.