Home / 142,608.46-196,801.23-78,947.38

Finding the Fourth Proportional to 142,608.46, 196,801.23 and 78,947.38

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Solution

The fourth proportional to 142,608.46, 196,801.23 and 78,947.38 is: 108,948.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,608.46 : 196,801.23 = 78,947.38 : x
  2. Step 2: Convert to fraction form
    142,608.46/196,801.23 = 78,947.38/x
  3. Step 3: Cross multiply
    142,608.46x = 196,801.23 × 78,947.38
  4. Step 4: Simplify right side
    142,608.46x = 15,536,941,489.28
  5. Step 5: Solve for x
    x = 15,536,941,489.28/142,608.46
  6. Step 6: Final answer
    x = 108,948.25

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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.