Home / 147,415.23-203,438.66-80,347.23

Finding the Fourth Proportional to 147,415.23, 203,438.66 and 80,347.23

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Solution

The fourth proportional to 147,415.23, 203,438.66 and 80,347.23 is: 110,882.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,415.23 : 203,438.66 = 80,347.23 : x
  2. Step 2: Convert to fraction form
    147,415.23/203,438.66 = 80,347.23/x
  3. Step 3: Cross multiply
    147,415.23x = 203,438.66 × 80,347.23
  4. Step 4: Simplify right side
    147,415.23x = 16,345,732,404.18
  5. Step 5: Solve for x
    x = 16,345,732,404.18/147,415.23
  6. Step 6: Final answer
    x = 110,882.25

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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.