Home / 151,206.30-208,651.14-87,548.40

Finding the Fourth Proportional to 151,206.30, 208,651.14 and 87,548.40

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Solution

The fourth proportional to 151,206.30, 208,651.14 and 87,548.40 is: 120,808.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,206.30 : 208,651.14 = 87,548.40 : x
  2. Step 2: Convert to fraction form
    151,206.30/208,651.14 = 87,548.40/x
  3. Step 3: Cross multiply
    151,206.30x = 208,651.14 × 87,548.40
  4. Step 4: Simplify right side
    151,206.30x = 18,267,073,465.18
  5. Step 5: Solve for x
    x = 18,267,073,465.18/151,206.30
  6. Step 6: Final answer
    x = 120,808.94

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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.