Home / 145,853.40-218,780.10-136,011.90

Finding the Fourth Proportional to 145,853.40, 218,780.10 and 136,011.90

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Solution

The fourth proportional to 145,853.40, 218,780.10 and 136,011.90 is: 204,017.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,853.40 : 218,780.10 = 136,011.90 : x
  2. Step 2: Convert to fraction form
    145,853.40/218,780.10 = 136,011.90/x
  3. Step 3: Cross multiply
    145,853.40x = 218,780.10 × 136,011.90
  4. Step 4: Simplify right side
    145,853.40x = 29,756,697,083.19
  5. Step 5: Solve for x
    x = 29,756,697,083.19/145,853.40
  6. Step 6: Final answer
    x = 204,017.85

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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.