Home / 115,087.04-158,849.92-103,129.92

Finding the Fourth Proportional to 115,087.04, 158,849.92 and 103,129.92

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Solution

The fourth proportional to 115,087.04, 158,849.92 and 103,129.92 is: 142,346.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,087.04 : 158,849.92 = 103,129.92 : x
  2. Step 2: Convert to fraction form
    115,087.04/158,849.92 = 103,129.92/x
  3. Step 3: Cross multiply
    115,087.04x = 158,849.92 × 103,129.92
  4. Step 4: Simplify right side
    115,087.04x = 16,382,179,541.61
  5. Step 5: Solve for x
    x = 16,382,179,541.61/115,087.04
  6. Step 6: Final answer
    x = 142,346.00

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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.