Home / 103,521.57-142,858.90-58,199.75

Finding the Fourth Proportional to 103,521.57, 142,858.90 and 58,199.75

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Solution

The fourth proportional to 103,521.57, 142,858.90 and 58,199.75 is: 80,315.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,521.57 : 142,858.90 = 58,199.75 : x
  2. Step 2: Convert to fraction form
    103,521.57/142,858.90 = 58,199.75/x
  3. Step 3: Cross multiply
    103,521.57x = 142,858.90 × 58,199.75
  4. Step 4: Simplify right side
    103,521.57x = 8,314,352,265.28
  5. Step 5: Solve for x
    x = 8,314,352,265.28/103,521.57
  6. Step 6: Final answer
    x = 80,315.17

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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.