Home / 202,767.68-279,801.63-112,123.20

Finding the Fourth Proportional to 202,767.68, 279,801.63 and 112,123.20

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Solution

The fourth proportional to 202,767.68, 279,801.63 and 112,123.20 is: 154,720.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,767.68 : 279,801.63 = 112,123.20 : x
  2. Step 2: Convert to fraction form
    202,767.68/279,801.63 = 112,123.20/x
  3. Step 3: Cross multiply
    202,767.68x = 279,801.63 × 112,123.20
  4. Step 4: Simplify right side
    202,767.68x = 31,372,254,120.82
  5. Step 5: Solve for x
    x = 31,372,254,120.82/202,767.68
  6. Step 6: Final answer
    x = 154,720.19

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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.