Home / 147,406.22-203,421.28-83,747.51

Finding the Fourth Proportional to 147,406.22, 203,421.28 and 83,747.51

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Solution

The fourth proportional to 147,406.22, 203,421.28 and 83,747.51 is: 115,571.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,406.22 : 203,421.28 = 83,747.51 : x
  2. Step 2: Convert to fraction form
    147,406.22/203,421.28 = 83,747.51/x
  3. Step 3: Cross multiply
    147,406.22x = 203,421.28 × 83,747.51
  4. Step 4: Simplify right side
    147,406.22x = 17,036,024,454.54
  5. Step 5: Solve for x
    x = 17,036,024,454.54/147,406.22
  6. Step 6: Final answer
    x = 115,571.96

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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.