Home / 127,948.60-191,922.90-72,652.60

Finding the Fourth Proportional to 127,948.60, 191,922.90 and 72,652.60

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Solution

The fourth proportional to 127,948.60, 191,922.90 and 72,652.60 is: 108,978.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,948.60 : 191,922.90 = 72,652.60 : x
  2. Step 2: Convert to fraction form
    127,948.60/191,922.90 = 72,652.60/x
  3. Step 3: Cross multiply
    127,948.60x = 191,922.90 × 72,652.60
  4. Step 4: Simplify right side
    127,948.60x = 13,943,697,684.54
  5. Step 5: Solve for x
    x = 13,943,697,684.54/127,948.60
  6. Step 6: Final answer
    x = 108,978.90

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1.5x scale

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.