Home / 115,864.83-173,830.05-68,521.95

Finding the Fourth Proportional to 115,864.83, 173,830.05 and 68,521.95

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Solution

The fourth proportional to 115,864.83, 173,830.05 and 68,521.95 is: 102,802.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,864.83 : 173,830.05 = 68,521.95 : x
  2. Step 2: Convert to fraction form
    115,864.83/173,830.05 = 68,521.95/x
  3. Step 3: Cross multiply
    115,864.83x = 173,830.05 × 68,521.95
  4. Step 4: Simplify right side
    115,864.83x = 11,911,173,994.60
  5. Step 5: Solve for x
    x = 11,911,173,994.60/115,864.83
  6. Step 6: Final answer
    x = 102,802.33

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.