Home / 155,884.78-215,123.07-92,220.94

Finding the Fourth Proportional to 155,884.78, 215,123.07 and 92,220.94

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Solution

The fourth proportional to 155,884.78, 215,123.07 and 92,220.94 is: 127,266.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,884.78 : 215,123.07 = 92,220.94 : x
  2. Step 2: Convert to fraction form
    155,884.78/215,123.07 = 92,220.94/x
  3. Step 3: Cross multiply
    155,884.78x = 215,123.07 × 92,220.94
  4. Step 4: Simplify right side
    155,884.78x = 19,838,851,731.09
  5. Step 5: Solve for x
    x = 19,838,851,731.09/155,884.78
  6. Step 6: Final answer
    x = 127,266.12

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1.5x scale

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.