Home / 103,161.78-142,372.02-59,568.36

Finding the Fourth Proportional to 103,161.78, 142,372.02 and 59,568.36

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Solution

The fourth proportional to 103,161.78, 142,372.02 and 59,568.36 is: 82,209.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,161.78 : 142,372.02 = 59,568.36 : x
  2. Step 2: Convert to fraction form
    103,161.78/142,372.02 = 59,568.36/x
  3. Step 3: Cross multiply
    103,161.78x = 142,372.02 × 59,568.36
  4. Step 4: Simplify right side
    103,161.78x = 8,480,867,741.29
  5. Step 5: Solve for x
    x = 8,480,867,741.29/103,161.78
  6. Step 6: Final answer
    x = 82,209.40

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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.