Home / 103,266.96-142,508.48-57,938.69

Finding the Fourth Proportional to 103,266.96, 142,508.48 and 57,938.69

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Solution

The fourth proportional to 103,266.96, 142,508.48 and 57,938.69 is: 79,955.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,266.96 : 142,508.48 = 57,938.69 : x
  2. Step 2: Convert to fraction form
    103,266.96/142,508.48 = 57,938.69/x
  3. Step 3: Cross multiply
    103,266.96x = 142,508.48 × 57,938.69
  4. Step 4: Simplify right side
    103,266.96x = 8,256,753,642.86
  5. Step 5: Solve for x
    x = 8,256,753,642.86/103,266.96
  6. Step 6: Final answer
    x = 79,955.42

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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.