Home / 158,935.51-219,335.06-87,317.34

Finding the Fourth Proportional to 158,935.51, 219,335.06 and 87,317.34

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Solution

The fourth proportional to 158,935.51, 219,335.06 and 87,317.34 is: 120,500.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,935.51 : 219,335.06 = 87,317.34 : x
  2. Step 2: Convert to fraction form
    158,935.51/219,335.06 = 87,317.34/x
  3. Step 3: Cross multiply
    158,935.51x = 219,335.06 × 87,317.34
  4. Step 4: Simplify right side
    158,935.51x = 19,151,754,007.94
  5. Step 5: Solve for x
    x = 19,151,754,007.94/158,935.51
  6. Step 6: Final answer
    x = 120,500.16

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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.