Home / 211,780.69-292,266.89-126,895.93

Finding the Fourth Proportional to 211,780.69, 292,266.89 and 126,895.93

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Solution

The fourth proportional to 211,780.69, 292,266.89 and 126,895.93 is: 175,122.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,780.69 : 292,266.89 = 126,895.93 : x
  2. Step 2: Convert to fraction form
    211,780.69/292,266.89 = 126,895.93/x
  3. Step 3: Cross multiply
    211,780.69x = 292,266.89 × 126,895.93
  4. Step 4: Simplify right side
    211,780.69x = 37,087,478,180.28
  5. Step 5: Solve for x
    x = 37,087,478,180.28/211,780.69
  6. Step 6: Final answer
    x = 175,122.10

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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.