Home / 158,733.72-219,045.32-87,112.32

Finding the Fourth Proportional to 158,733.72, 219,045.32 and 87,112.32

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Solution

The fourth proportional to 158,733.72, 219,045.32 and 87,112.32 is: 120,211.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,733.72 : 219,045.32 = 87,112.32 : x
  2. Step 2: Convert to fraction form
    158,733.72/219,045.32 = 87,112.32/x
  3. Step 3: Cross multiply
    158,733.72x = 219,045.32 × 87,112.32
  4. Step 4: Simplify right side
    158,733.72x = 19,081,545,574.78
  5. Step 5: Solve for x
    x = 19,081,545,574.78/158,733.72
  6. Step 6: Final answer
    x = 120,211.04

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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.