Home / 121,264.40-181,896.60-38,158.40

Finding the Fourth Proportional to 121,264.40, 181,896.60 and 38,158.40

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Solution

The fourth proportional to 121,264.40, 181,896.60 and 38,158.40 is: 57,237.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,264.40 : 181,896.60 = 38,158.40 : x
  2. Step 2: Convert to fraction form
    121,264.40/181,896.60 = 38,158.40/x
  3. Step 3: Cross multiply
    121,264.40x = 181,896.60 × 38,158.40
  4. Step 4: Simplify right side
    121,264.40x = 6,940,883,221.44
  5. Step 5: Solve for x
    x = 6,940,883,221.44/121,264.40
  6. Step 6: Final answer
    x = 57,237.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.