Home / 148,658.16-205,141.68-85,000.08

Finding the Fourth Proportional to 148,658.16, 205,141.68 and 85,000.08

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Solution

The fourth proportional to 148,658.16, 205,141.68 and 85,000.08 is: 117,296.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,658.16 : 205,141.68 = 85,000.08 : x
  2. Step 2: Convert to fraction form
    148,658.16/205,141.68 = 85,000.08/x
  3. Step 3: Cross multiply
    148,658.16x = 205,141.68 × 85,000.08
  4. Step 4: Simplify right side
    148,658.16x = 17,437,059,211.33
  5. Step 5: Solve for x
    x = 17,437,059,211.33/148,658.16
  6. Step 6: Final answer
    x = 117,296.35

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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.