Home / 143,875.98-198,551.34-80,206.74

Finding the Fourth Proportional to 143,875.98, 198,551.34 and 80,206.74

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Solution

The fourth proportional to 143,875.98, 198,551.34 and 80,206.74 is: 110,686.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,875.98 : 198,551.34 = 80,206.74 : x
  2. Step 2: Convert to fraction form
    143,875.98/198,551.34 = 80,206.74/x
  3. Step 3: Cross multiply
    143,875.98x = 198,551.34 × 80,206.74
  4. Step 4: Simplify right side
    143,875.98x = 15,925,155,704.03
  5. Step 5: Solve for x
    x = 15,925,155,704.03/143,875.98
  6. Step 6: Final answer
    x = 110,686.69

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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.