Home / 159,033.51-219,378.17-100,783.58

Finding the Fourth Proportional to 159,033.51, 219,378.17 and 100,783.58

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Solution

The fourth proportional to 159,033.51, 219,378.17 and 100,783.58 is: 139,025.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,033.51 : 219,378.17 = 100,783.58 : x
  2. Step 2: Convert to fraction form
    159,033.51/219,378.17 = 100,783.58/x
  3. Step 3: Cross multiply
    159,033.51x = 219,378.17 × 100,783.58
  4. Step 4: Simplify right side
    159,033.51x = 22,109,716,501.52
  5. Step 5: Solve for x
    x = 22,109,716,501.52/159,033.51
  6. Step 6: Final answer
    x = 139,025.52

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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.