Home / 147,451.42-203,482.74-83,789.20

Finding the Fourth Proportional to 147,451.42, 203,482.74 and 83,789.20

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Solution

The fourth proportional to 147,451.42, 203,482.74 and 83,789.20 is: 115,628.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,451.42 : 203,482.74 = 83,789.20 : x
  2. Step 2: Convert to fraction form
    147,451.42/203,482.74 = 83,789.20/x
  3. Step 3: Cross multiply
    147,451.42x = 203,482.74 × 83,789.20
  4. Step 4: Simplify right side
    147,451.42x = 17,049,655,998.41
  5. Step 5: Solve for x
    x = 17,049,655,998.41/147,451.42
  6. Step 6: Final answer
    x = 115,628.97

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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.