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Finding the Fourth Proportional to 115,568.64, 159,482.88 and 64,582.08

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Solution

The fourth proportional to 115,568.64, 159,482.88 and 64,582.08 is: 89,122.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,568.64 : 159,482.88 = 64,582.08 : x
  2. Step 2: Convert to fraction form
    115,568.64/159,482.88 = 64,582.08/x
  3. Step 3: Cross multiply
    115,568.64x = 159,482.88 × 64,582.08
  4. Step 4: Simplify right side
    115,568.64x = 10,299,736,114.79
  5. Step 5: Solve for x
    x = 10,299,736,114.79/115,568.64
  6. Step 6: Final answer
    x = 89,122.24

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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.