Home / 120,818.02-166,719.12-69,834.07

Finding the Fourth Proportional to 120,818.02, 166,719.12 and 69,834.07

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Solution

The fourth proportional to 120,818.02, 166,719.12 and 69,834.07 is: 96,365.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,818.02 : 166,719.12 = 69,834.07 : x
  2. Step 2: Convert to fraction form
    120,818.02/166,719.12 = 69,834.07/x
  3. Step 3: Cross multiply
    120,818.02x = 166,719.12 × 69,834.07
  4. Step 4: Simplify right side
    120,818.02x = 11,642,674,696.42
  5. Step 5: Solve for x
    x = 11,642,674,696.42/120,818.02
  6. Step 6: Final answer
    x = 96,365.38

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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.