Home / 147,386.88-221,145.60-77,249.44

Finding the Fourth Proportional to 147,386.88, 221,145.60 and 77,249.44

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Solution

The fourth proportional to 147,386.88, 221,145.60 and 77,249.44 is: 115,908.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,386.88 : 221,145.60 = 77,249.44 : x
  2. Step 2: Convert to fraction form
    147,386.88/221,145.60 = 77,249.44/x
  3. Step 3: Cross multiply
    147,386.88x = 221,145.60 × 77,249.44
  4. Step 4: Simplify right side
    147,386.88x = 17,083,373,758.46
  5. Step 5: Solve for x
    x = 17,083,373,758.46/147,386.88
  6. Step 6: Final answer
    x = 115,908.38

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1.5x scale

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.