Home / 97,870.98-146,821.05-45,285.78

Finding the Fourth Proportional to 97,870.98, 146,821.05 and 45,285.78

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Solution

The fourth proportional to 97,870.98, 146,821.05 and 45,285.78 is: 67,935.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,870.98 : 146,821.05 = 45,285.78 : x
  2. Step 2: Convert to fraction form
    97,870.98/146,821.05 = 45,285.78/x
  3. Step 3: Cross multiply
    97,870.98x = 146,821.05 × 45,285.78
  4. Step 4: Simplify right side
    97,870.98x = 6,648,905,769.67
  5. Step 5: Solve for x
    x = 6,648,905,769.67/97,870.98
  6. Step 6: Final answer
    x = 67,935.42

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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.