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Finding the Fourth Proportional to 100,334, 138,482.52 and 60,056.76

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Solution

The fourth proportional to 100,334, 138,482.52 and 60,056.76 is: 82,891.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,334 : 138,482.52 = 60,056.76 : x
  2. Step 2: Convert to fraction form
    100,334/138,482.52 = 60,056.76/x
  3. Step 3: Cross multiply
    100,334x = 138,482.52 × 60,056.76
  4. Step 4: Simplify right side
    100,334x = 8,316,811,467.84
  5. Step 5: Solve for x
    x = 8,316,811,467.84/100,334
  6. Step 6: Final answer
    x = 82,891.26

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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.