Home / 157,004.12-216,663.45-85,384.73

Finding the Fourth Proportional to 157,004.12, 216,663.45 and 85,384.73

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Solution

The fourth proportional to 157,004.12, 216,663.45 and 85,384.73 is: 117,829.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,004.12 : 216,663.45 = 85,384.73 : x
  2. Step 2: Convert to fraction form
    157,004.12/216,663.45 = 85,384.73/x
  3. Step 3: Cross multiply
    157,004.12x = 216,663.45 × 85,384.73
  4. Step 4: Simplify right side
    157,004.12x = 18,499,750,179.12
  5. Step 5: Solve for x
    x = 18,499,750,179.12/157,004.12
  6. Step 6: Final answer
    x = 117,829.71

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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.