Home / 109,029.56-163,547.42-30,143.78

Finding the Fourth Proportional to 109,029.56, 163,547.42 and 30,143.78

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Solution

The fourth proportional to 109,029.56, 163,547.42 and 30,143.78 is: 45,216.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,029.56 : 163,547.42 = 30,143.78 : x
  2. Step 2: Convert to fraction form
    109,029.56/163,547.42 = 30,143.78/x
  3. Step 3: Cross multiply
    109,029.56x = 163,547.42 × 30,143.78
  4. Step 4: Simplify right side
    109,029.56x = 4,929,937,448.05
  5. Step 5: Solve for x
    x = 4,929,937,448.05/109,029.56
  6. Step 6: Final answer
    x = 45,216.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.