Home / 115,068.60-158,779.98-64,757.88

Finding the Fourth Proportional to 115,068.60, 158,779.98 and 64,757.88

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Solution

The fourth proportional to 115,068.60, 158,779.98 and 64,757.88 is: 89,357.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,068.60 : 158,779.98 = 64,757.88 : x
  2. Step 2: Convert to fraction form
    115,068.60/158,779.98 = 64,757.88/x
  3. Step 3: Cross multiply
    115,068.60x = 158,779.98 × 64,757.88
  4. Step 4: Simplify right side
    115,068.60x = 10,282,254,891.24
  5. Step 5: Solve for x
    x = 10,282,254,891.24/115,068.60
  6. Step 6: Final answer
    x = 89,357.61

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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.