Home / 142,187.28-213,116.86-53,384.14

Finding the Fourth Proportional to 142,187.28, 213,116.86 and 53,384.14

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Solution

The fourth proportional to 142,187.28, 213,116.86 and 53,384.14 is: 80,014.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,187.28 : 213,116.86 = 53,384.14 : x
  2. Step 2: Convert to fraction form
    142,187.28/213,116.86 = 53,384.14/x
  3. Step 3: Cross multiply
    142,187.28x = 213,116.86 × 53,384.14
  4. Step 4: Simplify right side
    142,187.28x = 11,377,060,290.60
  5. Step 5: Solve for x
    x = 11,377,060,290.60/142,187.28
  6. Step 6: Final answer
    x = 80,014.61

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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.