Home / 114,468.20-158,007.02-78,143.66

Finding the Fourth Proportional to 114,468.20, 158,007.02 and 78,143.66

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Solution

The fourth proportional to 114,468.20, 158,007.02 and 78,143.66 is: 107,866.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,468.20 : 158,007.02 = 78,143.66 : x
  2. Step 2: Convert to fraction form
    114,468.20/158,007.02 = 78,143.66/x
  3. Step 3: Cross multiply
    114,468.20x = 158,007.02 × 78,143.66
  4. Step 4: Simplify right side
    114,468.20x = 12,347,246,848.49
  5. Step 5: Solve for x
    x = 12,347,246,848.49/114,468.20
  6. Step 6: Final answer
    x = 107,866.17

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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.