Home / 111,774.48-154,248.08-63,385.58

Finding the Fourth Proportional to 111,774.48, 154,248.08 and 63,385.58

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Solution

The fourth proportional to 111,774.48, 154,248.08 and 63,385.58 is: 87,471.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,774.48 : 154,248.08 = 63,385.58 : x
  2. Step 2: Convert to fraction form
    111,774.48/154,248.08 = 63,385.58/x
  3. Step 3: Cross multiply
    111,774.48x = 154,248.08 × 63,385.58
  4. Step 4: Simplify right side
    111,774.48x = 9,777,104,014.69
  5. Step 5: Solve for x
    x = 9,777,104,014.69/111,774.48
  6. Step 6: Final answer
    x = 87,471.70

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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.