Home / 147,653.47-221,272.56-84,378.76

Finding the Fourth Proportional to 147,653.47, 221,272.56 and 84,378.76

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Solution

The fourth proportional to 147,653.47, 221,272.56 and 84,378.76 is: 126,449.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,653.47 : 221,272.56 = 84,378.76 : x
  2. Step 2: Convert to fraction form
    147,653.47/221,272.56 = 84,378.76/x
  3. Step 3: Cross multiply
    147,653.47x = 221,272.56 × 84,378.76
  4. Step 4: Simplify right side
    147,653.47x = 18,670,704,234.83
  5. Step 5: Solve for x
    x = 18,670,704,234.83/147,653.47
  6. Step 6: Final answer
    x = 126,449.48

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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.