Home / 156,993.10-216,574.30-93,285.79

Finding the Fourth Proportional to 156,993.10, 216,574.30 and 93,285.79

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Solution

The fourth proportional to 156,993.10, 216,574.30 and 93,285.79 is: 128,689.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,993.10 : 216,574.30 = 93,285.79 : x
  2. Step 2: Convert to fraction form
    156,993.10/216,574.30 = 93,285.79/x
  3. Step 3: Cross multiply
    156,993.10x = 216,574.30 × 93,285.79
  4. Step 4: Simplify right side
    156,993.10x = 20,203,304,669.20
  5. Step 5: Solve for x
    x = 20,203,304,669.20/156,993.10
  6. Step 6: Final answer
    x = 128,689.12

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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.