Home / 207,130.82-310,598.06-72,147.80

Finding the Fourth Proportional to 207,130.82, 310,598.06 and 72,147.80

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Solution

The fourth proportional to 207,130.82, 310,598.06 and 72,147.80 is: 108,187.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,130.82 : 310,598.06 = 72,147.80 : x
  2. Step 2: Convert to fraction form
    207,130.82/310,598.06 = 72,147.80/x
  3. Step 3: Cross multiply
    207,130.82x = 310,598.06 × 72,147.80
  4. Step 4: Simplify right side
    207,130.82x = 22,408,966,713.27
  5. Step 5: Solve for x
    x = 22,408,966,713.27/207,130.82
  6. Step 6: Final answer
    x = 108,187.51

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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.