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Finding the Fourth Proportional to 113,777.34, 170,813.85 and 87,500.70

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Solution

The fourth proportional to 113,777.34, 170,813.85 and 87,500.70 is: 131,364.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,777.34 : 170,813.85 = 87,500.70 : x
  2. Step 2: Convert to fraction form
    113,777.34/170,813.85 = 87,500.70/x
  3. Step 3: Cross multiply
    113,777.34x = 170,813.85 × 87,500.70
  4. Step 4: Simplify right side
    113,777.34x = 14,946,331,444.70
  5. Step 5: Solve for x
    x = 14,946,331,444.70/113,777.34
  6. Step 6: Final answer
    x = 131,364.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.