Home / 158,727.35-219,047.34-87,111.95

Finding the Fourth Proportional to 158,727.35, 219,047.34 and 87,111.95

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Solution

The fourth proportional to 158,727.35, 219,047.34 and 87,111.95 is: 120,216.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,727.35 : 219,047.34 = 87,111.95 : x
  2. Step 2: Convert to fraction form
    158,727.35/219,047.34 = 87,111.95/x
  3. Step 3: Cross multiply
    158,727.35x = 219,047.34 × 87,111.95
  4. Step 4: Simplify right side
    158,727.35x = 19,081,639,834.48
  5. Step 5: Solve for x
    x = 19,081,639,834.48/158,727.35
  6. Step 6: Final answer
    x = 120,216.46

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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.