Home / 204,870.12-307,301.52-78,476.10

Finding the Fourth Proportional to 204,870.12, 307,301.52 and 78,476.10

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Solution

The fourth proportional to 204,870.12, 307,301.52 and 78,476.10 is: 117,712.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,870.12 : 307,301.52 = 78,476.10 : x
  2. Step 2: Convert to fraction form
    204,870.12/307,301.52 = 78,476.10/x
  3. Step 3: Cross multiply
    204,870.12x = 307,301.52 × 78,476.10
  4. Step 4: Simplify right side
    204,870.12x = 24,115,824,813.67
  5. Step 5: Solve for x
    x = 24,115,824,813.67/204,870.12
  6. Step 6: Final answer
    x = 117,712.75

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1.5x scale

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.