Home / 176,171.57-243,113.40-99,689.29

Finding the Fourth Proportional to 176,171.57, 243,113.40 and 99,689.29

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Solution

The fourth proportional to 176,171.57, 243,113.40 and 99,689.29 is: 137,569.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    176,171.57 : 243,113.40 = 99,689.29 : x
  2. Step 2: Convert to fraction form
    176,171.57/243,113.40 = 99,689.29/x
  3. Step 3: Cross multiply
    176,171.57x = 243,113.40 × 99,689.29
  4. Step 4: Simplify right side
    176,171.57x = 24,235,802,235.49
  5. Step 5: Solve for x
    x = 24,235,802,235.49/176,171.57
  6. Step 6: Final answer
    x = 137,569.32

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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.