Home / 142,247.46-196,307.14-81,818.04

Finding the Fourth Proportional to 142,247.46, 196,307.14 and 81,818.04

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Solution

The fourth proportional to 142,247.46, 196,307.14 and 81,818.04 is: 112,912.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,247.46 : 196,307.14 = 81,818.04 : x
  2. Step 2: Convert to fraction form
    142,247.46/196,307.14 = 81,818.04/x
  3. Step 3: Cross multiply
    142,247.46x = 196,307.14 × 81,818.04
  4. Step 4: Simplify right side
    142,247.46x = 16,061,465,432.81
  5. Step 5: Solve for x
    x = 16,061,465,432.81/142,247.46
  6. Step 6: Final answer
    x = 112,912.14

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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.