Home / 153,187.41-211,395.59-85,202.92

Finding the Fourth Proportional to 153,187.41, 211,395.59 and 85,202.92

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Solution

The fourth proportional to 153,187.41, 211,395.59 and 85,202.92 is: 117,578.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,187.41 : 211,395.59 = 85,202.92 : x
  2. Step 2: Convert to fraction form
    153,187.41/211,395.59 = 85,202.92/x
  3. Step 3: Cross multiply
    153,187.41x = 211,395.59 × 85,202.92
  4. Step 4: Simplify right side
    153,187.41x = 18,011,521,434.68
  5. Step 5: Solve for x
    x = 18,011,521,434.68/153,187.41
  6. Step 6: Final answer
    x = 117,578.34

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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.