Home / 115,864.08-159,855.26-64,869.30

Finding the Fourth Proportional to 115,864.08, 159,855.26 and 64,869.30

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Solution

The fourth proportional to 115,864.08, 159,855.26 and 64,869.30 is: 89,498.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,864.08 : 159,855.26 = 64,869.30 : x
  2. Step 2: Convert to fraction form
    115,864.08/159,855.26 = 64,869.30/x
  3. Step 3: Cross multiply
    115,864.08x = 159,855.26 × 64,869.30
  4. Step 4: Simplify right side
    115,864.08x = 10,369,698,493.17
  5. Step 5: Solve for x
    x = 10,369,698,493.17/115,864.08
  6. Step 6: Final answer
    x = 89,498.82

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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.