Home / 113,861.60-157,117.07-66,105.62

Finding the Fourth Proportional to 113,861.60, 157,117.07 and 66,105.62

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Solution

The fourth proportional to 113,861.60, 157,117.07 and 66,105.62 is: 91,218.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,861.60 : 157,117.07 = 66,105.62 : x
  2. Step 2: Convert to fraction form
    113,861.60/157,117.07 = 66,105.62/x
  3. Step 3: Cross multiply
    113,861.60x = 157,117.07 × 66,105.62
  4. Step 4: Simplify right side
    113,861.60x = 10,386,320,208.82
  5. Step 5: Solve for x
    x = 10,386,320,208.82/113,861.60
  6. Step 6: Final answer
    x = 91,218.82

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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.