Home / 113,455.38-156,611.27-89,193.05

Finding the Fourth Proportional to 113,455.38, 156,611.27 and 89,193.05

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Solution

The fourth proportional to 113,455.38, 156,611.27 and 89,193.05 is: 123,120.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,455.38 : 156,611.27 = 89,193.05 : x
  2. Step 2: Convert to fraction form
    113,455.38/156,611.27 = 89,193.05/x
  3. Step 3: Cross multiply
    113,455.38x = 156,611.27 × 89,193.05
  4. Step 4: Simplify right side
    113,455.38x = 13,968,635,606.65
  5. Step 5: Solve for x
    x = 13,968,635,606.65/113,455.38
  6. Step 6: Final answer
    x = 123,120.08

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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.