Home / 147,390.36-203,404.16-83,738.96

Finding the Fourth Proportional to 147,390.36, 203,404.16 and 83,738.96

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Solution

The fourth proportional to 147,390.36, 203,404.16 and 83,738.96 is: 115,562.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,390.36 : 203,404.16 = 83,738.96 : x
  2. Step 2: Convert to fraction form
    147,390.36/203,404.16 = 83,738.96/x
  3. Step 3: Cross multiply
    147,390.36x = 203,404.16 × 83,738.96
  4. Step 4: Simplify right side
    147,390.36x = 17,032,852,818.07
  5. Step 5: Solve for x
    x = 17,032,852,818.07/147,390.36
  6. Step 6: Final answer
    x = 115,562.87

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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.