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Finding the Fourth Proportional to 115,392.83, 159,250.10 and 64,415.57

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Solution

The fourth proportional to 115,392.83, 159,250.10 and 64,415.57 is: 88,897.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,392.83 : 159,250.10 = 64,415.57 : x
  2. Step 2: Convert to fraction form
    115,392.83/159,250.10 = 64,415.57/x
  3. Step 3: Cross multiply
    115,392.83x = 159,250.10 × 64,415.57
  4. Step 4: Simplify right side
    115,392.83x = 10,258,184,845.73
  5. Step 5: Solve for x
    x = 10,258,184,845.73/115,392.83
  6. Step 6: Final answer
    x = 88,897.94

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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.