Home / 147,908.10-222,001.35-77,837.70

Finding the Fourth Proportional to 147,908.10, 222,001.35 and 77,837.70

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Solution

The fourth proportional to 147,908.10, 222,001.35 and 77,837.70 is: 116,829.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,908.10 : 222,001.35 = 77,837.70 : x
  2. Step 2: Convert to fraction form
    147,908.10/222,001.35 = 77,837.70/x
  3. Step 3: Cross multiply
    147,908.10x = 222,001.35 × 77,837.70
  4. Step 4: Simplify right side
    147,908.10x = 17,280,074,480.90
  5. Step 5: Solve for x
    x = 17,280,074,480.90/147,908.10
  6. Step 6: Final answer
    x = 116,829.80

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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.