Home / 142,008.60-212,976.38-42,145.16

Finding the Fourth Proportional to 142,008.60, 212,976.38 and 42,145.16

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Solution

The fourth proportional to 142,008.60, 212,976.38 and 42,145.16 is: 63,206.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,008.60 : 212,976.38 = 42,145.16 : x
  2. Step 2: Convert to fraction form
    142,008.60/212,976.38 = 42,145.16/x
  3. Step 3: Cross multiply
    142,008.60x = 212,976.38 × 42,145.16
  4. Step 4: Simplify right side
    142,008.60x = 8,975,923,611.32
  5. Step 5: Solve for x
    x = 8,975,923,611.32/142,008.60
  6. Step 6: Final answer
    x = 63,206.90

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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.