Home / 209,295.15-313,935.67-90,966.51

Finding the Fourth Proportional to 209,295.15, 313,935.67 and 90,966.51

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Solution

The fourth proportional to 209,295.15, 313,935.67 and 90,966.51 is: 136,446.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,295.15 : 313,935.67 = 90,966.51 : x
  2. Step 2: Convert to fraction form
    209,295.15/313,935.67 = 90,966.51/x
  3. Step 3: Cross multiply
    209,295.15x = 313,935.67 × 90,966.51
  4. Step 4: Simplify right side
    209,295.15x = 28,557,632,264.41
  5. Step 5: Solve for x
    x = 28,557,632,264.41/209,295.15
  6. Step 6: Final answer
    x = 136,446.70

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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.