Home / 202,167.95-279,101.03-121,613.45

Finding the Fourth Proportional to 202,167.95, 279,101.03 and 121,613.45

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Solution

The fourth proportional to 202,167.95, 279,101.03 and 121,613.45 is: 167,892.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,167.95 : 279,101.03 = 121,613.45 : x
  2. Step 2: Convert to fraction form
    202,167.95/279,101.03 = 121,613.45/x
  3. Step 3: Cross multiply
    202,167.95x = 279,101.03 × 121,613.45
  4. Step 4: Simplify right side
    202,167.95x = 33,942,437,153.28
  5. Step 5: Solve for x
    x = 33,942,437,153.28/202,167.95
  6. Step 6: Final answer
    x = 167,892.28

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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.