Home / 132,988.13-183,395.61-89,478.71

Finding the Fourth Proportional to 132,988.13, 183,395.61 and 89,478.71

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Solution

The fourth proportional to 132,988.13, 183,395.61 and 89,478.71 is: 123,394.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,988.13 : 183,395.61 = 89,478.71 : x
  2. Step 2: Convert to fraction form
    132,988.13/183,395.61 = 89,478.71/x
  3. Step 3: Cross multiply
    132,988.13x = 183,395.61 × 89,478.71
  4. Step 4: Simplify right side
    132,988.13x = 16,410,001,685.49
  5. Step 5: Solve for x
    x = 16,410,001,685.49/132,988.13
  6. Step 6: Final answer
    x = 123,394.49

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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.