Home / 207,118.12-310,988.22-118,471.72

Finding the Fourth Proportional to 207,118.12, 310,988.22 and 118,471.72

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Solution

The fourth proportional to 207,118.12, 310,988.22 and 118,471.72 is: 177,885.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,118.12 : 310,988.22 = 118,471.72 : x
  2. Step 2: Convert to fraction form
    207,118.12/310,988.22 = 118,471.72/x
  3. Step 3: Cross multiply
    207,118.12x = 310,988.22 × 118,471.72
  4. Step 4: Simplify right side
    207,118.12x = 36,843,309,323.14
  5. Step 5: Solve for x
    x = 36,843,309,323.14/207,118.12
  6. Step 6: Final answer
    x = 177,885.50

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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.