Home / 107,106.65-147,773.39-61,778.55

Finding the Fourth Proportional to 107,106.65, 147,773.39 and 61,778.55

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Solution

The fourth proportional to 107,106.65, 147,773.39 and 61,778.55 is: 85,234.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,106.65 : 147,773.39 = 61,778.55 : x
  2. Step 2: Convert to fraction form
    107,106.65/147,773.39 = 61,778.55/x
  3. Step 3: Cross multiply
    107,106.65x = 147,773.39 × 61,778.55
  4. Step 4: Simplify right side
    107,106.65x = 9,129,225,917.23
  5. Step 5: Solve for x
    x = 9,129,225,917.23/107,106.65
  6. Step 6: Final answer
    x = 85,234.92

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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.