Home / 151,116.66-208,548-87,442.14

Finding the Fourth Proportional to 151,116.66, 208,548 and 87,442.14

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Solution

The fourth proportional to 151,116.66, 208,548 and 87,442.14 is: 120,674.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,116.66 : 208,548 = 87,442.14 : x
  2. Step 2: Convert to fraction form
    151,116.66/208,548 = 87,442.14/x
  3. Step 3: Cross multiply
    151,116.66x = 208,548 × 87,442.14
  4. Step 4: Simplify right side
    151,116.66x = 18,235,883,412.72
  5. Step 5: Solve for x
    x = 18,235,883,412.72/151,116.66
  6. Step 6: Final answer
    x = 120,674.21

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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.