Home / 134,135.65-185,106.90-72,881.97

Finding the Fourth Proportional to 134,135.65, 185,106.90 and 72,881.97

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Solution

The fourth proportional to 134,135.65, 185,106.90 and 72,881.97 is: 100,576.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,135.65 : 185,106.90 = 72,881.97 : x
  2. Step 2: Convert to fraction form
    134,135.65/185,106.90 = 72,881.97/x
  3. Step 3: Cross multiply
    134,135.65x = 185,106.90 × 72,881.97
  4. Step 4: Simplify right side
    134,135.65x = 13,490,955,532.59
  5. Step 5: Solve for x
    x = 13,490,955,532.59/134,135.65
  6. Step 6: Final answer
    x = 100,576.96

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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.