Home / 142,318.06-213,512.12-100,280.24

Finding the Fourth Proportional to 142,318.06, 213,512.12 and 100,280.24

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Solution

The fourth proportional to 142,318.06, 213,512.12 and 100,280.24 is: 150,445.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,318.06 : 213,512.12 = 100,280.24 : x
  2. Step 2: Convert to fraction form
    142,318.06/213,512.12 = 100,280.24/x
  3. Step 3: Cross multiply
    142,318.06x = 213,512.12 × 100,280.24
  4. Step 4: Simplify right side
    142,318.06x = 21,411,046,636.51
  5. Step 5: Solve for x
    x = 21,411,046,636.51/142,318.06
  6. Step 6: Final answer
    x = 150,445.04

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1.5x scale

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.