Home / 136,931.46-205,227.63-77,587.22

Finding the Fourth Proportional to 136,931.46, 205,227.63 and 77,587.22

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Solution

The fourth proportional to 136,931.46, 205,227.63 and 77,587.22 is: 116,284.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,931.46 : 205,227.63 = 77,587.22 : x
  2. Step 2: Convert to fraction form
    136,931.46/205,227.63 = 77,587.22/x
  3. Step 3: Cross multiply
    136,931.46x = 205,227.63 × 77,587.22
  4. Step 4: Simplify right side
    136,931.46x = 15,923,040,252.75
  5. Step 5: Solve for x
    x = 15,923,040,252.75/136,931.46
  6. Step 6: Final answer
    x = 116,284.75

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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.