Home / 143,693.79-198,295.45-80,032.04

Finding the Fourth Proportional to 143,693.79, 198,295.45 and 80,032.04

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Solution

The fourth proportional to 143,693.79, 198,295.45 and 80,032.04 is: 110,443.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,693.79 : 198,295.45 = 80,032.04 : x
  2. Step 2: Convert to fraction form
    143,693.79/198,295.45 = 80,032.04/x
  3. Step 3: Cross multiply
    143,693.79x = 198,295.45 × 80,032.04
  4. Step 4: Simplify right side
    143,693.79x = 15,869,989,386.22
  5. Step 5: Solve for x
    x = 15,869,989,386.22/143,693.79
  6. Step 6: Final answer
    x = 110,443.11

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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.