Home / 216,456.76-298,705.17-120,981.93

Finding the Fourth Proportional to 216,456.76, 298,705.17 and 120,981.93

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Solution

The fourth proportional to 216,456.76, 298,705.17 and 120,981.93 is: 166,952.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,456.76 : 298,705.17 = 120,981.93 : x
  2. Step 2: Convert to fraction form
    216,456.76/298,705.17 = 120,981.93/x
  3. Step 3: Cross multiply
    216,456.76x = 298,705.17 × 120,981.93
  4. Step 4: Simplify right side
    216,456.76x = 36,137,927,967.58
  5. Step 5: Solve for x
    x = 36,137,927,967.58/216,456.76
  6. Step 6: Final answer
    x = 166,952.18

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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.