Home / 153,326.80-211,589.44-85,342.69

Finding the Fourth Proportional to 153,326.80, 211,589.44 and 85,342.69

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Solution

The fourth proportional to 153,326.80, 211,589.44 and 85,342.69 is: 117,772.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,326.80 : 211,589.44 = 85,342.69 : x
  2. Step 2: Convert to fraction form
    153,326.80/211,589.44 = 85,342.69/x
  3. Step 3: Cross multiply
    153,326.80x = 211,589.44 × 85,342.69
  4. Step 4: Simplify right side
    153,326.80x = 18,057,611,985.19
  5. Step 5: Solve for x
    x = 18,057,611,985.19/153,326.80
  6. Step 6: Final answer
    x = 117,772.05

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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.