Home / 136,937.40-205,406.10-89,935.80

Finding the Fourth Proportional to 136,937.40, 205,406.10 and 89,935.80

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Solution

The fourth proportional to 136,937.40, 205,406.10 and 89,935.80 is: 134,903.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,937.40 : 205,406.10 = 89,935.80 : x
  2. Step 2: Convert to fraction form
    136,937.40/205,406.10 = 89,935.80/x
  3. Step 3: Cross multiply
    136,937.40x = 205,406.10 × 89,935.80
  4. Step 4: Simplify right side
    136,937.40x = 18,473,361,928.38
  5. Step 5: Solve for x
    x = 18,473,361,928.38/136,937.40
  6. Step 6: Final answer
    x = 134,903.70

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.