Home / 102,653.28-141,649.20-57,334.32

Finding the Fourth Proportional to 102,653.28, 141,649.20 and 57,334.32

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Solution

The fourth proportional to 102,653.28, 141,649.20 and 57,334.32 is: 79,114.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,653.28 : 141,649.20 = 57,334.32 : x
  2. Step 2: Convert to fraction form
    102,653.28/141,649.20 = 57,334.32/x
  3. Step 3: Cross multiply
    102,653.28x = 141,649.20 × 57,334.32
  4. Step 4: Simplify right side
    102,653.28x = 8,121,360,560.54
  5. Step 5: Solve for x
    x = 8,121,360,560.54/102,653.28
  6. Step 6: Final answer
    x = 79,114.48

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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.