Home / 111,631.10-154,048.24-63,881.40

Finding the Fourth Proportional to 111,631.10, 154,048.24 and 63,881.40

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Solution

The fourth proportional to 111,631.10, 154,048.24 and 63,881.40 is: 88,154.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,631.10 : 154,048.24 = 63,881.40 : x
  2. Step 2: Convert to fraction form
    111,631.10/154,048.24 = 63,881.40/x
  3. Step 3: Cross multiply
    111,631.10x = 154,048.24 × 63,881.40
  4. Step 4: Simplify right side
    111,631.10x = 9,840,817,238.74
  5. Step 5: Solve for x
    x = 9,840,817,238.74/111,631.10
  6. Step 6: Final answer
    x = 88,154.80

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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.