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Finding the Fourth Proportional to 101,467.56, 140,064.48 and 90,838.74

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Solution

The fourth proportional to 101,467.56, 140,064.48 and 90,838.74 is: 125,392.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,467.56 : 140,064.48 = 90,838.74 : x
  2. Step 2: Convert to fraction form
    101,467.56/140,064.48 = 90,838.74/x
  3. Step 3: Cross multiply
    101,467.56x = 140,064.48 × 90,838.74
  4. Step 4: Simplify right side
    101,467.56x = 12,723,280,881.96
  5. Step 5: Solve for x
    x = 12,723,280,881.96/101,467.56
  6. Step 6: Final answer
    x = 125,392.60

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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.