Home / 155,479.08-232,785.51-79,412.90

Finding the Fourth Proportional to 155,479.08, 232,785.51 and 79,412.90

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Solution

The fourth proportional to 155,479.08, 232,785.51 and 79,412.90 is: 118,898.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,479.08 : 232,785.51 = 79,412.90 : x
  2. Step 2: Convert to fraction form
    155,479.08/232,785.51 = 79,412.90/x
  3. Step 3: Cross multiply
    155,479.08x = 232,785.51 × 79,412.90
  4. Step 4: Simplify right side
    155,479.08x = 18,486,171,263.15
  5. Step 5: Solve for x
    x = 18,486,171,263.15/155,479.08
  6. Step 6: Final answer
    x = 118,898.13

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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.