Home / 160,391.95-221,321.47-92,431.19

Finding the Fourth Proportional to 160,391.95, 221,321.47 and 92,431.19

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Solution

The fourth proportional to 160,391.95, 221,321.47 and 92,431.19 is: 127,543.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,391.95 : 221,321.47 = 92,431.19 : x
  2. Step 2: Convert to fraction form
    160,391.95/221,321.47 = 92,431.19/x
  3. Step 3: Cross multiply
    160,391.95x = 221,321.47 × 92,431.19
  4. Step 4: Simplify right side
    160,391.95x = 20,457,006,382.49
  5. Step 5: Solve for x
    x = 20,457,006,382.49/160,391.95
  6. Step 6: Final answer
    x = 127,543.85

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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.