Home / 99,430.20-148,780.80-73,186.20

Finding the Fourth Proportional to 99,430.20, 148,780.80 and 73,186.20

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Solution

The fourth proportional to 99,430.20, 148,780.80 and 73,186.20 is: 109,511.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,430.20 : 148,780.80 = 73,186.20 : x
  2. Step 2: Convert to fraction form
    99,430.20/148,780.80 = 73,186.20/x
  3. Step 3: Cross multiply
    99,430.20x = 148,780.80 × 73,186.20
  4. Step 4: Simplify right side
    99,430.20x = 10,888,701,384.96
  5. Step 5: Solve for x
    x = 10,888,701,384.96/99,430.20
  6. Step 6: Final answer
    x = 109,511.01

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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.