Home / 155,196.72-232,897-85,125.20

Finding the Fourth Proportional to 155,196.72, 232,897 and 85,125.20

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Solution

The fourth proportional to 155,196.72, 232,897 and 85,125.20 is: 127,743.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,196.72 : 232,897 = 85,125.20 : x
  2. Step 2: Convert to fraction form
    155,196.72/232,897 = 85,125.20/x
  3. Step 3: Cross multiply
    155,196.72x = 232,897 × 85,125.20
  4. Step 4: Simplify right side
    155,196.72x = 19,825,403,704.40
  5. Step 5: Solve for x
    x = 19,825,403,704.40/155,196.72
  6. Step 6: Final answer
    x = 127,743.70

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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.