Home / 153,479.27-211,807.78-85,496.23

Finding the Fourth Proportional to 153,479.27, 211,807.78 and 85,496.23

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Solution

The fourth proportional to 153,479.27, 211,807.78 and 85,496.23 is: 117,988.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,479.27 : 211,807.78 = 85,496.23 : x
  2. Step 2: Convert to fraction form
    153,479.27/211,807.78 = 85,496.23/x
  3. Step 3: Cross multiply
    153,479.27x = 211,807.78 × 85,496.23
  4. Step 4: Simplify right side
    153,479.27x = 18,108,765,751.97
  5. Step 5: Solve for x
    x = 18,108,765,751.97/153,479.27
  6. Step 6: Final answer
    x = 117,988.35

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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.