Home / 215,740.36-323,558.62-65,981.95

Finding the Fourth Proportional to 215,740.36, 323,558.62 and 65,981.95

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Solution

The fourth proportional to 215,740.36, 323,558.62 and 65,981.95 is: 98,957.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,740.36 : 323,558.62 = 65,981.95 : x
  2. Step 2: Convert to fraction form
    215,740.36/323,558.62 = 65,981.95/x
  3. Step 3: Cross multiply
    215,740.36x = 323,558.62 × 65,981.95
  4. Step 4: Simplify right side
    215,740.36x = 21,349,028,686.91
  5. Step 5: Solve for x
    x = 21,349,028,686.91/215,740.36
  6. Step 6: Final answer
    x = 98,957.05

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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.