Home / 105,179,843.76-145,241,253.72-65,555,000.34

Finding the Fourth Proportional to 105,179,843.76, 145,241,253.72 and 65,555,000.34

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Solution

The fourth proportional to 105,179,843.76, 145,241,253.72 and 65,555,000.34 is: 90,523,907.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,179,843.76 : 145,241,253.72 = 65,555,000.34 : x
  2. Step 2: Convert to fraction form
    105,179,843.76/145,241,253.72 = 65,555,000.34/x
  3. Step 3: Cross multiply
    105,179,843.76x = 145,241,253.72 × 65,555,000.34
  4. Step 4: Simplify right side
    105,179,843.76x = 9,521,290,436,996,626
  5. Step 5: Solve for x
    x = 9,521,290,436,996,626/105,179,843.76
  6. Step 6: Final answer
    x = 90,523,907.40

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.