Home / 111,488.40-153,828.72-63,734.04

Finding the Fourth Proportional to 111,488.40, 153,828.72 and 63,734.04

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Solution

The fourth proportional to 111,488.40, 153,828.72 and 63,734.04 is: 87,938.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,488.40 : 153,828.72 = 63,734.04 : x
  2. Step 2: Convert to fraction form
    111,488.40/153,828.72 = 63,734.04/x
  3. Step 3: Cross multiply
    111,488.40x = 153,828.72 × 63,734.04
  4. Step 4: Simplify right side
    111,488.40x = 9,804,125,793.63
  5. Step 5: Solve for x
    x = 9,804,125,793.63/111,488.40
  6. Step 6: Final answer
    x = 87,938.53

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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.