Home / 207,320.12-310,835.88-91,851.91

Finding the Fourth Proportional to 207,320.12, 310,835.88 and 91,851.91

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Solution

The fourth proportional to 207,320.12, 310,835.88 and 91,851.91 is: 137,713.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,320.12 : 310,835.88 = 91,851.91 : x
  2. Step 2: Convert to fraction form
    207,320.12/310,835.88 = 91,851.91/x
  3. Step 3: Cross multiply
    207,320.12x = 310,835.88 × 91,851.91
  4. Step 4: Simplify right side
    207,320.12x = 28,550,868,497.44
  5. Step 5: Solve for x
    x = 28,550,868,497.44/207,320.12
  6. Step 6: Final answer
    x = 137,713.93

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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.