Home / 143,607.28-198,170.40-79,943.44

Finding the Fourth Proportional to 143,607.28, 198,170.40 and 79,943.44

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Solution

The fourth proportional to 143,607.28, 198,170.40 and 79,943.44 is: 110,317.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,607.28 : 198,170.40 = 79,943.44 : x
  2. Step 2: Convert to fraction form
    143,607.28/198,170.40 = 79,943.44/x
  3. Step 3: Cross multiply
    143,607.28x = 198,170.40 × 79,943.44
  4. Step 4: Simplify right side
    143,607.28x = 15,842,423,482.18
  5. Step 5: Solve for x
    x = 15,842,423,482.18/143,607.28
  6. Step 6: Final answer
    x = 110,317.69

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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.