Home / 207,205.40-310,729.98-66,926.36

Finding the Fourth Proportional to 207,205.40, 310,729.98 and 66,926.36

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Solution

The fourth proportional to 207,205.40, 310,729.98 and 66,926.36 is: 100,364.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,205.40 : 310,729.98 = 66,926.36 : x
  2. Step 2: Convert to fraction form
    207,205.40/310,729.98 = 66,926.36/x
  3. Step 3: Cross multiply
    207,205.40x = 310,729.98 × 66,926.36
  4. Step 4: Simplify right side
    207,205.40x = 20,796,026,504.27
  5. Step 5: Solve for x
    x = 20,796,026,504.27/207,205.40
  6. Step 6: Final answer
    x = 100,364.31

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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.