Home / 146,140.20-219,210.30-83,759.40

Finding the Fourth Proportional to 146,140.20, 219,210.30 and 83,759.40

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Solution

The fourth proportional to 146,140.20, 219,210.30 and 83,759.40 is: 125,639.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,140.20 : 219,210.30 = 83,759.40 : x
  2. Step 2: Convert to fraction form
    146,140.20/219,210.30 = 83,759.40/x
  3. Step 3: Cross multiply
    146,140.20x = 219,210.30 × 83,759.40
  4. Step 4: Simplify right side
    146,140.20x = 18,360,923,201.82
  5. Step 5: Solve for x
    x = 18,360,923,201.82/146,140.20
  6. Step 6: Final answer
    x = 125,639.10

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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.