Home / 86,177.76-118,896.72-70,234.80

Finding the Fourth Proportional to 86,177.76, 118,896.72 and 70,234.80

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Solution

The fourth proportional to 86,177.76, 118,896.72 and 70,234.80 is: 96,900.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,177.76 : 118,896.72 = 70,234.80 : x
  2. Step 2: Convert to fraction form
    86,177.76/118,896.72 = 70,234.80/x
  3. Step 3: Cross multiply
    86,177.76x = 118,896.72 × 70,234.80
  4. Step 4: Simplify right side
    86,177.76x = 8,350,687,349.86
  5. Step 5: Solve for x
    x = 8,350,687,349.86/86,177.76
  6. Step 6: Final answer
    x = 96,900.72

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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.