Home / 142,392.02-213,920.19-83,269.31

Finding the Fourth Proportional to 142,392.02, 213,920.19 and 83,269.31

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Solution

The fourth proportional to 142,392.02, 213,920.19 and 83,269.31 is: 125,098.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,392.02 : 213,920.19 = 83,269.31 : x
  2. Step 2: Convert to fraction form
    142,392.02/213,920.19 = 83,269.31/x
  3. Step 3: Cross multiply
    142,392.02x = 213,920.19 × 83,269.31
  4. Step 4: Simplify right side
    142,392.02x = 17,812,985,546.77
  5. Step 5: Solve for x
    x = 17,812,985,546.77/142,392.02
  6. Step 6: Final answer
    x = 125,098.21

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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.