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Finding the Fourth Proportional to 114,710, 158,231.16 and 72,194.72

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Solution

The fourth proportional to 114,710, 158,231.16 and 72,194.72 is: 99,585.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,710 : 158,231.16 = 72,194.72 : x
  2. Step 2: Convert to fraction form
    114,710/158,231.16 = 72,194.72/x
  3. Step 3: Cross multiply
    114,710x = 158,231.16 × 72,194.72
  4. Step 4: Simplify right side
    114,710x = 11,423,454,291.48
  5. Step 5: Solve for x
    x = 11,423,454,291.48/114,710
  6. Step 6: Final answer
    x = 99,585.51

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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.