Home / 147,645.28-203,750.49-80,577.28

Finding the Fourth Proportional to 147,645.28, 203,750.49 and 80,577.28

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Solution

The fourth proportional to 147,645.28, 203,750.49 and 80,577.28 is: 111,196.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,645.28 : 203,750.49 = 80,577.28 : x
  2. Step 2: Convert to fraction form
    147,645.28/203,750.49 = 80,577.28/x
  3. Step 3: Cross multiply
    147,645.28x = 203,750.49 × 80,577.28
  4. Step 4: Simplify right side
    147,645.28x = 16,417,660,386.47
  5. Step 5: Solve for x
    x = 16,417,660,386.47/147,645.28
  6. Step 6: Final answer
    x = 111,196.65

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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.