Home / 158,934.47-219,333.44-87,319.13

Finding the Fourth Proportional to 158,934.47, 219,333.44 and 87,319.13

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Solution

The fourth proportional to 158,934.47, 219,333.44 and 87,319.13 is: 120,502.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,934.47 : 219,333.44 = 87,319.13 : x
  2. Step 2: Convert to fraction form
    158,934.47/219,333.44 = 87,319.13/x
  3. Step 3: Cross multiply
    158,934.47x = 219,333.44 × 87,319.13
  4. Step 4: Simplify right side
    158,934.47x = 19,152,004,724.11
  5. Step 5: Solve for x
    x = 19,152,004,724.11/158,934.47
  6. Step 6: Final answer
    x = 120,502.52

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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.