Home / 103,660.29-143,045.28-58,340.16

Finding the Fourth Proportional to 103,660.29, 143,045.28 and 58,340.16

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Solution

The fourth proportional to 103,660.29, 143,045.28 and 58,340.16 is: 80,506.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,660.29 : 143,045.28 = 58,340.16 : x
  2. Step 2: Convert to fraction form
    103,660.29/143,045.28 = 58,340.16/x
  3. Step 3: Cross multiply
    103,660.29x = 143,045.28 × 58,340.16
  4. Step 4: Simplify right side
    103,660.29x = 8,345,284,522.44
  5. Step 5: Solve for x
    x = 8,345,284,522.44/103,660.29
  6. Step 6: Final answer
    x = 80,506.09

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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.