Home / 142,229.70-213,428.72-52,335.54

Finding the Fourth Proportional to 142,229.70, 213,428.72 and 52,335.54

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Solution

The fourth proportional to 142,229.70, 213,428.72 and 52,335.54 is: 78,534.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,229.70 : 213,428.72 = 52,335.54 : x
  2. Step 2: Convert to fraction form
    142,229.70/213,428.72 = 52,335.54/x
  3. Step 3: Cross multiply
    142,229.70x = 213,428.72 × 52,335.54
  4. Step 4: Simplify right side
    142,229.70x = 11,169,907,312.71
  5. Step 5: Solve for x
    x = 11,169,907,312.71/142,229.70
  6. Step 6: Final answer
    x = 78,534.28

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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.