Home / 99,343.20-149,000.40-29,215.20

Finding the Fourth Proportional to 99,343.20, 149,000.40 and 29,215.20

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Solution

The fourth proportional to 99,343.20, 149,000.40 and 29,215.20 is: 43,818.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,343.20 : 149,000.40 = 29,215.20 : x
  2. Step 2: Convert to fraction form
    99,343.20/149,000.40 = 29,215.20/x
  3. Step 3: Cross multiply
    99,343.20x = 149,000.40 × 29,215.20
  4. Step 4: Simplify right side
    99,343.20x = 4,353,076,486.08
  5. Step 5: Solve for x
    x = 4,353,076,486.08/99,343.20
  6. Step 6: Final answer
    x = 43,818.57

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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.