Home / 142,188.28-213,118.36-53,385.14

Finding the Fourth Proportional to 142,188.28, 213,118.36 and 53,385.14

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Solution

The fourth proportional to 142,188.28, 213,118.36 and 53,385.14 is: 80,016.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,188.28 : 213,118.36 = 53,385.14 : x
  2. Step 2: Convert to fraction form
    142,188.28/213,118.36 = 53,385.14/x
  3. Step 3: Cross multiply
    142,188.28x = 213,118.36 × 53,385.14
  4. Step 4: Simplify right side
    142,188.28x = 11,377,353,485.17
  5. Step 5: Solve for x
    x = 11,377,353,485.17/142,188.28
  6. Step 6: Final answer
    x = 80,016.11

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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.