Home / 303,139.18-455,025.75-125,751.52

Finding the Fourth Proportional to 303,139.18, 455,025.75 and 125,751.52

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Solution

The fourth proportional to 303,139.18, 455,025.75 and 125,751.52 is: 188,758.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,139.18 : 455,025.75 = 125,751.52 : x
  2. Step 2: Convert to fraction form
    303,139.18/455,025.75 = 125,751.52/x
  3. Step 3: Cross multiply
    303,139.18x = 455,025.75 × 125,751.52
  4. Step 4: Simplify right side
    303,139.18x = 57,220,179,701.64
  5. Step 5: Solve for x
    x = 57,220,179,701.64/303,139.18
  6. Step 6: Final answer
    x = 188,758.77

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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.