Home / 211,377.69-291,701.19-115,885.05

Finding the Fourth Proportional to 211,377.69, 291,701.19 and 115,885.05

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Solution

The fourth proportional to 211,377.69, 291,701.19 and 115,885.05 is: 159,921.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,377.69 : 291,701.19 = 115,885.05 : x
  2. Step 2: Convert to fraction form
    211,377.69/291,701.19 = 115,885.05/x
  3. Step 3: Cross multiply
    211,377.69x = 291,701.19 × 115,885.05
  4. Step 4: Simplify right side
    211,377.69x = 33,803,806,988.21
  5. Step 5: Solve for x
    x = 33,803,806,988.21/211,377.69
  6. Step 6: Final answer
    x = 159,921.36

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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.