Home / 99,573.40-149,114.18-74,212.10

Finding the Fourth Proportional to 99,573.40, 149,114.18 and 74,212.10

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Solution

The fourth proportional to 99,573.40, 149,114.18 and 74,212.10 is: 111,134.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,573.40 : 149,114.18 = 74,212.10 : x
  2. Step 2: Convert to fraction form
    99,573.40/149,114.18 = 74,212.10/x
  3. Step 3: Cross multiply
    99,573.40x = 149,114.18 × 74,212.10
  4. Step 4: Simplify right side
    99,573.40x = 11,066,076,437.58
  5. Step 5: Solve for x
    x = 11,066,076,437.58/99,573.40
  6. Step 6: Final answer
    x = 111,134.87

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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.