Home / 143,269.17-197,707.55-79,605.33

Finding the Fourth Proportional to 143,269.17, 197,707.55 and 79,605.33

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Solution

The fourth proportional to 143,269.17, 197,707.55 and 79,605.33 is: 109,853.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,269.17 : 197,707.55 = 79,605.33 : x
  2. Step 2: Convert to fraction form
    143,269.17/197,707.55 = 79,605.33/x
  3. Step 3: Cross multiply
    143,269.17x = 197,707.55 × 79,605.33
  4. Step 4: Simplify right side
    143,269.17x = 15,738,574,363.21
  5. Step 5: Solve for x
    x = 15,738,574,363.21/143,269.17
  6. Step 6: Final answer
    x = 109,853.18

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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.