Home / 107,561.79-148,373.59-89,309.19

Finding the Fourth Proportional to 107,561.79, 148,373.59 and 89,309.19

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Solution

The fourth proportional to 107,561.79, 148,373.59 and 89,309.19 is: 123,195.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,561.79 : 148,373.59 = 89,309.19 : x
  2. Step 2: Convert to fraction form
    107,561.79/148,373.59 = 89,309.19/x
  3. Step 3: Cross multiply
    107,561.79x = 148,373.59 × 89,309.19
  4. Step 4: Simplify right side
    107,561.79x = 13,251,125,140.29
  5. Step 5: Solve for x
    x = 13,251,125,140.29/107,561.79
  6. Step 6: Final answer
    x = 123,195.47

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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.