Home / 111,329.52-153,631.56-63,581.88

Finding the Fourth Proportional to 111,329.52, 153,631.56 and 63,581.88

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Solution

The fourth proportional to 111,329.52, 153,631.56 and 63,581.88 is: 87,741.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,329.52 : 153,631.56 = 63,581.88 : x
  2. Step 2: Convert to fraction form
    111,329.52/153,631.56 = 63,581.88/x
  3. Step 3: Cross multiply
    111,329.52x = 153,631.56 × 63,581.88
  4. Step 4: Simplify right side
    111,329.52x = 9,768,183,412.13
  5. Step 5: Solve for x
    x = 9,768,183,412.13/111,329.52
  6. Step 6: Final answer
    x = 87,741.18

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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.