Home / 142,027.56-196,002.14-78,369.46

Finding the Fourth Proportional to 142,027.56, 196,002.14 and 78,369.46

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Solution

The fourth proportional to 142,027.56, 196,002.14 and 78,369.46 is: 108,152.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,027.56 : 196,002.14 = 78,369.46 : x
  2. Step 2: Convert to fraction form
    142,027.56/196,002.14 = 78,369.46/x
  3. Step 3: Cross multiply
    142,027.56x = 196,002.14 × 78,369.46
  4. Step 4: Simplify right side
    142,027.56x = 15,360,581,674.72
  5. Step 5: Solve for x
    x = 15,360,581,674.72/142,027.56
  6. Step 6: Final answer
    x = 108,152.12

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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.