Home / 99,210.12-148,814.30-40,003.88

Finding the Fourth Proportional to 99,210.12, 148,814.30 and 40,003.88

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Solution

The fourth proportional to 99,210.12, 148,814.30 and 40,003.88 is: 60,005.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,210.12 : 148,814.30 = 40,003.88 : x
  2. Step 2: Convert to fraction form
    99,210.12/148,814.30 = 40,003.88/x
  3. Step 3: Cross multiply
    99,210.12x = 148,814.30 × 40,003.88
  4. Step 4: Simplify right side
    99,210.12x = 5,953,149,399.48
  5. Step 5: Solve for x
    x = 5,953,149,399.48/99,210.12
  6. Step 6: Final answer
    x = 60,005.47

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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.