Home / 153,112.38-211,296.39-99,417.66

Finding the Fourth Proportional to 153,112.38, 211,296.39 and 99,417.66

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Solution

The fourth proportional to 153,112.38, 211,296.39 and 99,417.66 is: 137,197.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,112.38 : 211,296.39 = 99,417.66 : x
  2. Step 2: Convert to fraction form
    153,112.38/211,296.39 = 99,417.66/x
  3. Step 3: Cross multiply
    153,112.38x = 211,296.39 × 99,417.66
  4. Step 4: Simplify right side
    153,112.38x = 21,006,592,660.25
  5. Step 5: Solve for x
    x = 21,006,592,660.25/153,112.38
  6. Step 6: Final answer
    x = 137,197.22

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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.