Home / 208,261.15-312,327.02-75,124.10

Finding the Fourth Proportional to 208,261.15, 312,327.02 and 75,124.10

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Solution

The fourth proportional to 208,261.15, 312,327.02 and 75,124.10 is: 112,662.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,261.15 : 312,327.02 = 75,124.10 : x
  2. Step 2: Convert to fraction form
    208,261.15/312,327.02 = 75,124.10/x
  3. Step 3: Cross multiply
    208,261.15x = 312,327.02 × 75,124.10
  4. Step 4: Simplify right side
    208,261.15x = 23,463,287,251.81
  5. Step 5: Solve for x
    x = 23,463,287,251.81/208,261.15
  6. Step 6: Final answer
    x = 112,662.82

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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.