Home / 202,309.13-279,186.60-112,885.13

Finding the Fourth Proportional to 202,309.13, 279,186.60 and 112,885.13

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Solution

The fourth proportional to 202,309.13, 279,186.60 and 112,885.13 is: 155,781.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,309.13 : 279,186.60 = 112,885.13 : x
  2. Step 2: Convert to fraction form
    202,309.13/279,186.60 = 112,885.13/x
  3. Step 3: Cross multiply
    202,309.13x = 279,186.60 × 112,885.13
  4. Step 4: Simplify right side
    202,309.13x = 31,516,014,239.33
  5. Step 5: Solve for x
    x = 31,516,014,239.33/202,309.13
  6. Step 6: Final answer
    x = 155,781.48

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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.