Home / 103,258.44-142,487.91-57,930.30

Finding the Fourth Proportional to 103,258.44, 142,487.91 and 57,930.30

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Solution

The fourth proportional to 103,258.44, 142,487.91 and 57,930.30 is: 79,938.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,258.44 : 142,487.91 = 57,930.30 : x
  2. Step 2: Convert to fraction form
    103,258.44/142,487.91 = 57,930.30/x
  3. Step 3: Cross multiply
    103,258.44x = 142,487.91 × 57,930.30
  4. Step 4: Simplify right side
    103,258.44x = 8,254,367,372.67
  5. Step 5: Solve for x
    x = 8,254,367,372.67/103,258.44
  6. Step 6: Final answer
    x = 79,938.91

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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.