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Finding the Fourth Proportional to 157,595.39, 217,477.98 and 85,977.93

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Solution

The fourth proportional to 157,595.39, 217,477.98 and 85,977.93 is: 118,647.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,595.39 : 217,477.98 = 85,977.93 : x
  2. Step 2: Convert to fraction form
    157,595.39/217,477.98 = 85,977.93/x
  3. Step 3: Cross multiply
    157,595.39x = 217,477.98 × 85,977.93
  4. Step 4: Simplify right side
    157,595.39x = 18,698,306,540.98
  5. Step 5: Solve for x
    x = 18,698,306,540.98/157,595.39
  6. Step 6: Final answer
    x = 118,647.55

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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.