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Finding the Fourth Proportional to 117,578.61, 162,259.68 and 63,864.68

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Solution

The fourth proportional to 117,578.61, 162,259.68 and 63,864.68 is: 88,133.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,578.61 : 162,259.68 = 63,864.68 : x
  2. Step 2: Convert to fraction form
    117,578.61/162,259.68 = 63,864.68/x
  3. Step 3: Cross multiply
    117,578.61x = 162,259.68 × 63,864.68
  4. Step 4: Simplify right side
    117,578.61x = 10,362,661,728.80
  5. Step 5: Solve for x
    x = 10,362,661,728.80/117,578.61
  6. Step 6: Final answer
    x = 88,133.90

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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.