Home / 85,166.70-127,750.05-83,417.10

Finding the Fourth Proportional to 85,166.70, 127,750.05 and 83,417.10

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Solution

The fourth proportional to 85,166.70, 127,750.05 and 83,417.10 is: 125,125.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,166.70 : 127,750.05 = 83,417.10 : x
  2. Step 2: Convert to fraction form
    85,166.70/127,750.05 = 83,417.10/x
  3. Step 3: Cross multiply
    85,166.70x = 127,750.05 × 83,417.10
  4. Step 4: Simplify right side
    85,166.70x = 10,656,538,695.86
  5. Step 5: Solve for x
    x = 10,656,538,695.86/85,166.70
  6. Step 6: Final answer
    x = 125,125.65

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1.5x scale

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.