Home / 124,730.16-172,119.52-68,141.52

Finding the Fourth Proportional to 124,730.16, 172,119.52 and 68,141.52

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Solution

The fourth proportional to 124,730.16, 172,119.52 and 68,141.52 is: 94,030.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,730.16 : 172,119.52 = 68,141.52 : x
  2. Step 2: Convert to fraction form
    124,730.16/172,119.52 = 68,141.52/x
  3. Step 3: Cross multiply
    124,730.16x = 172,119.52 × 68,141.52
  4. Step 4: Simplify right side
    124,730.16x = 11,728,485,714.47
  5. Step 5: Solve for x
    x = 11,728,485,714.47/124,730.16
  6. Step 6: Final answer
    x = 94,030.87

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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.