Home / 155,281.68-232,923.96-85,122.72

Finding the Fourth Proportional to 155,281.68, 232,923.96 and 85,122.72

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Solution

The fourth proportional to 155,281.68, 232,923.96 and 85,122.72 is: 127,684.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,281.68 : 232,923.96 = 85,122.72 : x
  2. Step 2: Convert to fraction form
    155,281.68/232,923.96 = 85,122.72/x
  3. Step 3: Cross multiply
    155,281.68x = 232,923.96 × 85,122.72
  4. Step 4: Simplify right side
    155,281.68x = 19,827,121,028.37
  5. Step 5: Solve for x
    x = 19,827,121,028.37/155,281.68
  6. Step 6: Final answer
    x = 127,684.87

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.