Home / 205,007.10-307,510.65-125,864.70

Finding the Fourth Proportional to 205,007.10, 307,510.65 and 125,864.70

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Solution

The fourth proportional to 205,007.10, 307,510.65 and 125,864.70 is: 188,797.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,007.10 : 307,510.65 = 125,864.70 : x
  2. Step 2: Convert to fraction form
    205,007.10/307,510.65 = 125,864.70/x
  3. Step 3: Cross multiply
    205,007.10x = 307,510.65 × 125,864.70
  4. Step 4: Simplify right side
    205,007.10x = 38,704,735,709.06
  5. Step 5: Solve for x
    x = 38,704,735,709.06/205,007.10
  6. Step 6: Final answer
    x = 188,797.05

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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.