Home / 155,359.08-232,644.96-124,128.72

Finding the Fourth Proportional to 155,359.08, 232,644.96 and 124,128.72

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Solution

The fourth proportional to 155,359.08, 232,644.96 and 124,128.72 is: 185,878.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,359.08 : 232,644.96 = 124,128.72 : x
  2. Step 2: Convert to fraction form
    155,359.08/232,644.96 = 124,128.72/x
  3. Step 3: Cross multiply
    155,359.08x = 232,644.96 × 124,128.72
  4. Step 4: Simplify right side
    155,359.08x = 28,877,921,099.25
  5. Step 5: Solve for x
    x = 28,877,921,099.25/155,359.08
  6. Step 6: Final answer
    x = 185,878.55

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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.