Home / 142,981.12-214,320.24-48,120.96

Finding the Fourth Proportional to 142,981.12, 214,320.24 and 48,120.96

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Solution

The fourth proportional to 142,981.12, 214,320.24 and 48,120.96 is: 72,130.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,981.12 : 214,320.24 = 48,120.96 : x
  2. Step 2: Convert to fraction form
    142,981.12/214,320.24 = 48,120.96/x
  3. Step 3: Cross multiply
    142,981.12x = 214,320.24 × 48,120.96
  4. Step 4: Simplify right side
    142,981.12x = 10,313,295,696.23
  5. Step 5: Solve for x
    x = 10,313,295,696.23/142,981.12
  6. Step 6: Final answer
    x = 72,130.47

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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.