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Finding the Fourth Proportional to 100,346.37, 138,482.37 and 60,052.47

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Solution

The fourth proportional to 100,346.37, 138,482.37 and 60,052.47 is: 82,875.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,346.37 : 138,482.37 = 60,052.47 : x
  2. Step 2: Convert to fraction form
    100,346.37/138,482.37 = 60,052.47/x
  3. Step 3: Cross multiply
    100,346.37x = 138,482.37 × 60,052.47
  4. Step 4: Simplify right side
    100,346.37x = 8,316,208,369.95
  5. Step 5: Solve for x
    x = 8,316,208,369.95/100,346.37
  6. Step 6: Final answer
    x = 82,875.03

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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.