Home / 140,225.12-193,510.56-76,562.92

Finding the Fourth Proportional to 140,225.12, 193,510.56 and 76,562.92

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Solution

The fourth proportional to 140,225.12, 193,510.56 and 76,562.92 is: 105,656.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,225.12 : 193,510.56 = 76,562.92 : x
  2. Step 2: Convert to fraction form
    140,225.12/193,510.56 = 76,562.92/x
  3. Step 3: Cross multiply
    140,225.12x = 193,510.56 × 76,562.92
  4. Step 4: Simplify right side
    140,225.12x = 14,815,733,040.66
  5. Step 5: Solve for x
    x = 14,815,733,040.66/140,225.12
  6. Step 6: Final answer
    x = 105,656.77

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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.