Home / 207,221.02-285,965.45-122,343.55

Finding the Fourth Proportional to 207,221.02, 285,965.45 and 122,343.55

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Solution

The fourth proportional to 207,221.02, 285,965.45 and 122,343.55 is: 168,834.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,221.02 : 285,965.45 = 122,343.55 : x
  2. Step 2: Convert to fraction form
    207,221.02/285,965.45 = 122,343.55/x
  3. Step 3: Cross multiply
    207,221.02x = 285,965.45 × 122,343.55
  4. Step 4: Simplify right side
    207,221.02x = 34,986,027,718.63
  5. Step 5: Solve for x
    x = 34,986,027,718.63/207,221.02
  6. Step 6: Final answer
    x = 168,834.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.