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Finding the Fourth Proportional to 99,014.88, 148,561.20 and 43,572

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Solution

The fourth proportional to 99,014.88, 148,561.20 and 43,572 is: 65,375.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,014.88 : 148,561.20 = 43,572 : x
  2. Step 2: Convert to fraction form
    99,014.88/148,561.20 = 43,572/x
  3. Step 3: Cross multiply
    99,014.88x = 148,561.20 × 43,572
  4. Step 4: Simplify right side
    99,014.88x = 6,473,108,606.40
  5. Step 5: Solve for x
    x = 6,473,108,606.40/99,014.88
  6. Step 6: Final answer
    x = 65,375.11

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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.