Home / 142,716.10-214,074.15-83,521.30

Finding the Fourth Proportional to 142,716.10, 214,074.15 and 83,521.30

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Solution

The fourth proportional to 142,716.10, 214,074.15 and 83,521.30 is: 125,281.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,716.10 : 214,074.15 = 83,521.30 : x
  2. Step 2: Convert to fraction form
    142,716.10/214,074.15 = 83,521.30/x
  3. Step 3: Cross multiply
    142,716.10x = 214,074.15 × 83,521.30
  4. Step 4: Simplify right side
    142,716.10x = 17,879,751,304.40
  5. Step 5: Solve for x
    x = 17,879,751,304.40/142,716.10
  6. Step 6: Final answer
    x = 125,281.95

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.