Home / 159,111.17-219,579.06-87,496.64

Finding the Fourth Proportional to 159,111.17, 219,579.06 and 87,496.64

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Solution

The fourth proportional to 159,111.17, 219,579.06 and 87,496.64 is: 120,748.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,111.17 : 219,579.06 = 87,496.64 : x
  2. Step 2: Convert to fraction form
    159,111.17/219,579.06 = 87,496.64/x
  3. Step 3: Cross multiply
    159,111.17x = 219,579.06 × 87,496.64
  4. Step 4: Simplify right side
    159,111.17x = 19,212,429,964.36
  5. Step 5: Solve for x
    x = 19,212,429,964.36/159,111.17
  6. Step 6: Final answer
    x = 120,748.47

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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.