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Finding the Fourth Proportional to 115,518, 159,415.32 and 62,526

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Solution

The fourth proportional to 115,518, 159,415.32 and 62,526 is: 86,286.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,518 : 159,415.32 = 62,526 : x
  2. Step 2: Convert to fraction form
    115,518/159,415.32 = 62,526/x
  3. Step 3: Cross multiply
    115,518x = 159,415.32 × 62,526
  4. Step 4: Simplify right side
    115,518x = 9,967,602,298.32
  5. Step 5: Solve for x
    x = 9,967,602,298.32/115,518
  6. Step 6: Final answer
    x = 86,286.14

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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.