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Finding the Fourth Proportional to 159,779.56, 220,495.64 and 88,159.59

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Solution

The fourth proportional to 159,779.56, 220,495.64 and 88,159.59 is: 121,660.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,779.56 : 220,495.64 = 88,159.59 : x
  2. Step 2: Convert to fraction form
    159,779.56/220,495.64 = 88,159.59/x
  3. Step 3: Cross multiply
    159,779.56x = 220,495.64 × 88,159.59
  4. Step 4: Simplify right side
    159,779.56x = 19,438,805,522.24
  5. Step 5: Solve for x
    x = 19,438,805,522.24/159,779.56
  6. Step 6: Final answer
    x = 121,660.15

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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.