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Finding the Fourth Proportional to 118,810.78, 163,959.02 and 65,099.24

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Solution

The fourth proportional to 118,810.78, 163,959.02 and 65,099.24 is: 89,837.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,810.78 : 163,959.02 = 65,099.24 : x
  2. Step 2: Convert to fraction form
    118,810.78/163,959.02 = 65,099.24/x
  3. Step 3: Cross multiply
    118,810.78x = 163,959.02 × 65,099.24
  4. Step 4: Simplify right side
    118,810.78x = 10,673,607,593.14
  5. Step 5: Solve for x
    x = 10,673,607,593.14/118,810.78
  6. Step 6: Final answer
    x = 89,837.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.