Home / 101,830.10-152,700.04-54,433.70

Finding the Fourth Proportional to 101,830.10, 152,700.04 and 54,433.70

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Solution

The fourth proportional to 101,830.10, 152,700.04 and 54,433.70 is: 81,626.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,830.10 : 152,700.04 = 54,433.70 : x
  2. Step 2: Convert to fraction form
    101,830.10/152,700.04 = 54,433.70/x
  3. Step 3: Cross multiply
    101,830.10x = 152,700.04 × 54,433.70
  4. Step 4: Simplify right side
    101,830.10x = 8,312,028,597.26
  5. Step 5: Solve for x
    x = 8,312,028,597.26/101,830.10
  6. Step 6: Final answer
    x = 81,626.44

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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.