Home / 99,694.18-137,543.23-63,903.93

Finding the Fourth Proportional to 99,694.18, 137,543.23 and 63,903.93

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Solution

The fourth proportional to 99,694.18, 137,543.23 and 63,903.93 is: 88,165.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,694.18 : 137,543.23 = 63,903.93 : x
  2. Step 2: Convert to fraction form
    99,694.18/137,543.23 = 63,903.93/x
  3. Step 3: Cross multiply
    99,694.18x = 137,543.23 × 63,903.93
  4. Step 4: Simplify right side
    99,694.18x = 8,789,552,941.89
  5. Step 5: Solve for x
    x = 8,789,552,941.89/99,694.18
  6. Step 6: Final answer
    x = 88,165.16

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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.