Home / 113,932.12-157,215.72-66,184.80

Finding the Fourth Proportional to 113,932.12, 157,215.72 and 66,184.80

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Solution

The fourth proportional to 113,932.12, 157,215.72 and 66,184.80 is: 91,328.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,932.12 : 157,215.72 = 66,184.80 : x
  2. Step 2: Convert to fraction form
    113,932.12/157,215.72 = 66,184.80/x
  3. Step 3: Cross multiply
    113,932.12x = 157,215.72 × 66,184.80
  4. Step 4: Simplify right side
    113,932.12x = 10,405,290,985.06
  5. Step 5: Solve for x
    x = 10,405,290,985.06/113,932.12
  6. Step 6: Final answer
    x = 91,328.86

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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.