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Finding the Fourth Proportional to 115,237, 159,027.06 and 64,937.80

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Solution

The fourth proportional to 115,237, 159,027.06 and 64,937.80 is: 89,614.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,237 : 159,027.06 = 64,937.80 : x
  2. Step 2: Convert to fraction form
    115,237/159,027.06 = 64,937.80/x
  3. Step 3: Cross multiply
    115,237x = 159,027.06 × 64,937.80
  4. Step 4: Simplify right side
    115,237x = 10,326,867,416.87
  5. Step 5: Solve for x
    x = 10,326,867,416.87/115,237
  6. Step 6: Final answer
    x = 89,614.16

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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.