Home / 140,474.40-193,838.76-83,115.48

Finding the Fourth Proportional to 140,474.40, 193,838.76 and 83,115.48

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Solution

The fourth proportional to 140,474.40, 193,838.76 and 83,115.48 is: 114,689.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,474.40 : 193,838.76 = 83,115.48 : x
  2. Step 2: Convert to fraction form
    140,474.40/193,838.76 = 83,115.48/x
  3. Step 3: Cross multiply
    140,474.40x = 193,838.76 × 83,115.48
  4. Step 4: Simplify right side
    140,474.40x = 16,111,001,580.00
  5. Step 5: Solve for x
    x = 16,111,001,580.00/140,474.40
  6. Step 6: Final answer
    x = 114,689.95

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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.