Home / 151,206.80-208,651.83-87,548.90

Finding the Fourth Proportional to 151,206.80, 208,651.83 and 87,548.90

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Solution

The fourth proportional to 151,206.80, 208,651.83 and 87,548.90 is: 120,809.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,206.80 : 208,651.83 = 87,548.90 : x
  2. Step 2: Convert to fraction form
    151,206.80/208,651.83 = 87,548.90/x
  3. Step 3: Cross multiply
    151,206.80x = 208,651.83 × 87,548.90
  4. Step 4: Simplify right side
    151,206.80x = 18,267,238,199.49
  5. Step 5: Solve for x
    x = 18,267,238,199.49/151,206.80
  6. Step 6: Final answer
    x = 120,809.63

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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.