Home / 158,701.14-219,012.21-87,085.71

Finding the Fourth Proportional to 158,701.14, 219,012.21 and 87,085.71

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Solution

The fourth proportional to 158,701.14, 219,012.21 and 87,085.71 is: 120,180.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,701.14 : 219,012.21 = 87,085.71 : x
  2. Step 2: Convert to fraction form
    158,701.14/219,012.21 = 87,085.71/x
  3. Step 3: Cross multiply
    158,701.14x = 219,012.21 × 87,085.71
  4. Step 4: Simplify right side
    158,701.14x = 19,072,833,806.52
  5. Step 5: Solve for x
    x = 19,072,833,806.52/158,701.14
  6. Step 6: Final answer
    x = 120,180.82

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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.