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Finding the Fourth Proportional to 160,779.88, 221,952.42 and 107,154.28

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Solution

The fourth proportional to 160,779.88, 221,952.42 and 107,154.28 is: 147,923.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,779.88 : 221,952.42 = 107,154.28 : x
  2. Step 2: Convert to fraction form
    160,779.88/221,952.42 = 107,154.28/x
  3. Step 3: Cross multiply
    160,779.88x = 221,952.42 × 107,154.28
  4. Step 4: Simplify right side
    160,779.88x = 23,783,151,759.36
  5. Step 5: Solve for x
    x = 23,783,151,759.36/160,779.88
  6. Step 6: Final answer
    x = 147,923.68

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1.5x scale

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.