Home / 142,081.32-213,156.60-47,311.32

Finding the Fourth Proportional to 142,081.32, 213,156.60 and 47,311.32

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Solution

The fourth proportional to 142,081.32, 213,156.60 and 47,311.32 is: 70,978.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,081.32 : 213,156.60 = 47,311.32 : x
  2. Step 2: Convert to fraction form
    142,081.32/213,156.60 = 47,311.32/x
  3. Step 3: Cross multiply
    142,081.32x = 213,156.60 × 47,311.32
  4. Step 4: Simplify right side
    142,081.32x = 10,084,720,112.71
  5. Step 5: Solve for x
    x = 10,084,720,112.71/142,081.32
  6. Step 6: Final answer
    x = 70,978.51

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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.