Home / 113,835.08-157,110.87-66,116.12

Finding the Fourth Proportional to 113,835.08, 157,110.87 and 66,116.12

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Solution

The fourth proportional to 113,835.08, 157,110.87 and 66,116.12 is: 91,250.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,835.08 : 157,110.87 = 66,116.12 : x
  2. Step 2: Convert to fraction form
    113,835.08/157,110.87 = 66,116.12/x
  3. Step 3: Cross multiply
    113,835.08x = 157,110.87 × 66,116.12
  4. Step 4: Simplify right side
    113,835.08x = 10,387,560,596.61
  5. Step 5: Solve for x
    x = 10,387,560,596.61/113,835.08
  6. Step 6: Final answer
    x = 91,250.96

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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.