Home / 143,681.14-198,272.10-80,007.58

Finding the Fourth Proportional to 143,681.14, 198,272.10 and 80,007.58

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Solution

The fourth proportional to 143,681.14, 198,272.10 and 80,007.58 is: 110,406.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,681.14 : 198,272.10 = 80,007.58 : x
  2. Step 2: Convert to fraction form
    143,681.14/198,272.10 = 80,007.58/x
  3. Step 3: Cross multiply
    143,681.14x = 198,272.10 × 80,007.58
  4. Step 4: Simplify right side
    143,681.14x = 15,863,270,902.52
  5. Step 5: Solve for x
    x = 15,863,270,902.52/143,681.14
  6. Step 6: Final answer
    x = 110,406.08

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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.