Home / 143,946.46-198,646.40-80,288.38

Finding the Fourth Proportional to 143,946.46, 198,646.40 and 80,288.38

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Solution

The fourth proportional to 143,946.46, 198,646.40 and 80,288.38 is: 110,798.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,946.46 : 198,646.40 = 80,288.38 : x
  2. Step 2: Convert to fraction form
    143,946.46/198,646.40 = 80,288.38/x
  3. Step 3: Cross multiply
    143,946.46x = 198,646.40 × 80,288.38
  4. Step 4: Simplify right side
    143,946.46x = 15,948,996,254.16
  5. Step 5: Solve for x
    x = 15,948,996,254.16/143,946.46
  6. Step 6: Final answer
    x = 110,798.12

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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.