Home / 142,612.05-213,848.82-71,504.13

Finding the Fourth Proportional to 142,612.05, 213,848.82 and 71,504.13

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Solution

The fourth proportional to 142,612.05, 213,848.82 and 71,504.13 is: 107,221.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,612.05 : 213,848.82 = 71,504.13 : x
  2. Step 2: Convert to fraction form
    142,612.05/213,848.82 = 71,504.13/x
  3. Step 3: Cross multiply
    142,612.05x = 213,848.82 × 71,504.13
  4. Step 4: Simplify right side
    142,612.05x = 15,291,073,825.63
  5. Step 5: Solve for x
    x = 15,291,073,825.63/142,612.05
  6. Step 6: Final answer
    x = 107,221.47

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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.