Home / 142,347.38-196,439.38-85,770.50

Finding the Fourth Proportional to 142,347.38, 196,439.38 and 85,770.50

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Solution

The fourth proportional to 142,347.38, 196,439.38 and 85,770.50 is: 118,363.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,347.38 : 196,439.38 = 85,770.50 : x
  2. Step 2: Convert to fraction form
    142,347.38/196,439.38 = 85,770.50/x
  3. Step 3: Cross multiply
    142,347.38x = 196,439.38 × 85,770.50
  4. Step 4: Simplify right side
    142,347.38x = 16,848,702,645.67
  5. Step 5: Solve for x
    x = 16,848,702,645.67/142,347.38
  6. Step 6: Final answer
    x = 118,363.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.