Home / 115,981.03-160,045.73-64,297.61

Finding the Fourth Proportional to 115,981.03, 160,045.73 and 64,297.61

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Solution

The fourth proportional to 115,981.03, 160,045.73 and 64,297.61 is: 88,726.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,981.03 : 160,045.73 = 64,297.61 : x
  2. Step 2: Convert to fraction form
    115,981.03/160,045.73 = 64,297.61/x
  3. Step 3: Cross multiply
    115,981.03x = 160,045.73 × 64,297.61
  4. Step 4: Simplify right side
    115,981.03x = 10,290,558,329.82
  5. Step 5: Solve for x
    x = 10,290,558,329.82/115,981.03
  6. Step 6: Final answer
    x = 88,726.22

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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.