Home / 111,574.18-153,966.90-63,832.78

Finding the Fourth Proportional to 111,574.18, 153,966.90 and 63,832.78

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Solution

The fourth proportional to 111,574.18, 153,966.90 and 63,832.78 is: 88,086.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,574.18 : 153,966.90 = 63,832.78 : x
  2. Step 2: Convert to fraction form
    111,574.18/153,966.90 = 63,832.78/x
  3. Step 3: Cross multiply
    111,574.18x = 153,966.90 × 63,832.78
  4. Step 4: Simplify right side
    111,574.18x = 9,828,135,254.98
  5. Step 5: Solve for x
    x = 9,828,135,254.98/111,574.18
  6. Step 6: Final answer
    x = 88,086.11

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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.