Home / 142,327.80-213,383.70-72,257.40

Finding the Fourth Proportional to 142,327.80, 213,383.70 and 72,257.40

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Solution

The fourth proportional to 142,327.80, 213,383.70 and 72,257.40 is: 108,331.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,327.80 : 213,383.70 = 72,257.40 : x
  2. Step 2: Convert to fraction form
    142,327.80/213,383.70 = 72,257.40/x
  3. Step 3: Cross multiply
    142,327.80x = 213,383.70 × 72,257.40
  4. Step 4: Simplify right side
    142,327.80x = 15,418,551,364.38
  5. Step 5: Solve for x
    x = 15,418,551,364.38/142,327.80
  6. Step 6: Final answer
    x = 108,331.27

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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.