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Finding the Fourth Proportional to 84,295.89, 127,005.98 and 76,300.38

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Solution

The fourth proportional to 84,295.89, 127,005.98 and 76,300.38 is: 114,959.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,295.89 : 127,005.98 = 76,300.38 : x
  2. Step 2: Convert to fraction form
    84,295.89/127,005.98 = 76,300.38/x
  3. Step 3: Cross multiply
    84,295.89x = 127,005.98 × 76,300.38
  4. Step 4: Simplify right side
    84,295.89x = 9,690,604,154.77
  5. Step 5: Solve for x
    x = 9,690,604,154.77/84,295.89
  6. Step 6: Final answer
    x = 114,959.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.