Home / 142,981.68-214,333.06-68,081.70

Finding the Fourth Proportional to 142,981.68, 214,333.06 and 68,081.70

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Solution

The fourth proportional to 142,981.68, 214,333.06 and 68,081.70 is: 102,056.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,981.68 : 214,333.06 = 68,081.70 : x
  2. Step 2: Convert to fraction form
    142,981.68/214,333.06 = 68,081.70/x
  3. Step 3: Cross multiply
    142,981.68x = 214,333.06 × 68,081.70
  4. Step 4: Simplify right side
    142,981.68x = 14,592,159,091.00
  5. Step 5: Solve for x
    x = 14,592,159,091.00/142,981.68
  6. Step 6: Final answer
    x = 102,056.15

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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.