Home / 142,386.75-213,912.32-83,264.04

Finding the Fourth Proportional to 142,386.75, 213,912.32 and 83,264.04

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Solution

The fourth proportional to 142,386.75, 213,912.32 and 83,264.04 is: 125,090.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,386.75 : 213,912.32 = 83,264.04 : x
  2. Step 2: Convert to fraction form
    142,386.75/213,912.32 = 83,264.04/x
  3. Step 3: Cross multiply
    142,386.75x = 213,912.32 × 83,264.04
  4. Step 4: Simplify right side
    142,386.75x = 17,811,203,552.65
  5. Step 5: Solve for x
    x = 17,811,203,552.65/142,386.75
  6. Step 6: Final answer
    x = 125,090.32

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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.