Home / 99,015.40-148,523.10-39,820.60

Finding the Fourth Proportional to 99,015.40, 148,523.10 and 39,820.60

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Solution

The fourth proportional to 99,015.40, 148,523.10 and 39,820.60 is: 59,730.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,015.40 : 148,523.10 = 39,820.60 : x
  2. Step 2: Convert to fraction form
    99,015.40/148,523.10 = 39,820.60/x
  3. Step 3: Cross multiply
    99,015.40x = 148,523.10 × 39,820.60
  4. Step 4: Simplify right side
    99,015.40x = 5,914,278,955.86
  5. Step 5: Solve for x
    x = 5,914,278,955.86/99,015.40
  6. Step 6: Final answer
    x = 59,730.90

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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.