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Finding the Fourth Proportional to 159,365.50, 219,924.39 and 88,709.50

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Solution

The fourth proportional to 159,365.50, 219,924.39 and 88,709.50 is: 122,419.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,365.50 : 219,924.39 = 88,709.50 : x
  2. Step 2: Convert to fraction form
    159,365.50/219,924.39 = 88,709.50/x
  3. Step 3: Cross multiply
    159,365.50x = 219,924.39 × 88,709.50
  4. Step 4: Simplify right side
    159,365.50x = 19,509,382,674.71
  5. Step 5: Solve for x
    x = 19,509,382,674.71/159,365.50
  6. Step 6: Final answer
    x = 122,419.11

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1.5x scale

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.