Home / 142,081.04-213,126.96-47,319.68

Finding the Fourth Proportional to 142,081.04, 213,126.96 and 47,319.68

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Solution

The fourth proportional to 142,081.04, 213,126.96 and 47,319.68 is: 70,981.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,081.04 : 213,126.96 = 47,319.68 : x
  2. Step 2: Convert to fraction form
    142,081.04/213,126.96 = 47,319.68/x
  3. Step 3: Cross multiply
    142,081.04x = 213,126.96 × 47,319.68
  4. Step 4: Simplify right side
    142,081.04x = 10,085,099,546.57
  5. Step 5: Solve for x
    x = 10,085,099,546.57/142,081.04
  6. Step 6: Final answer
    x = 70,981.32

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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.