Home / 99,946.51-137,912.85-64,184.96

Finding the Fourth Proportional to 99,946.51, 137,912.85 and 64,184.96

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Solution

The fourth proportional to 99,946.51, 137,912.85 and 64,184.96 is: 88,566.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,946.51 : 137,912.85 = 64,184.96 : x
  2. Step 2: Convert to fraction form
    99,946.51/137,912.85 = 64,184.96/x
  3. Step 3: Cross multiply
    99,946.51x = 137,912.85 × 64,184.96
  4. Step 4: Simplify right side
    99,946.51x = 8,851,930,760.74
  5. Step 5: Solve for x
    x = 8,851,930,760.74/99,946.51
  6. Step 6: Final answer
    x = 88,566.68

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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.