Home / 209,666.88-289,295.16-124,767.36

Finding the Fourth Proportional to 209,666.88, 289,295.16 and 124,767.36

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Solution

The fourth proportional to 209,666.88, 289,295.16 and 124,767.36 is: 172,152.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,666.88 : 289,295.16 = 124,767.36 : x
  2. Step 2: Convert to fraction form
    209,666.88/289,295.16 = 124,767.36/x
  3. Step 3: Cross multiply
    209,666.88x = 289,295.16 × 124,767.36
  4. Step 4: Simplify right side
    209,666.88x = 36,094,593,373.98
  5. Step 5: Solve for x
    x = 36,094,593,373.98/209,666.88
  6. Step 6: Final answer
    x = 172,152.10

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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.