Home / 111,478.08-153,842.40-63,735.90

Finding the Fourth Proportional to 111,478.08, 153,842.40 and 63,735.90

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Solution

The fourth proportional to 111,478.08, 153,842.40 and 63,735.90 is: 87,957.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,478.08 : 153,842.40 = 63,735.90 : x
  2. Step 2: Convert to fraction form
    111,478.08/153,842.40 = 63,735.90/x
  3. Step 3: Cross multiply
    111,478.08x = 153,842.40 × 63,735.90
  4. Step 4: Simplify right side
    111,478.08x = 9,805,283,822.16
  5. Step 5: Solve for x
    x = 9,805,283,822.16/111,478.08
  6. Step 6: Final answer
    x = 87,957.06

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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.