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Finding the Fourth Proportional to 153,063.88, 211,226.03 and 85,080.98

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Solution

The fourth proportional to 153,063.88, 211,226.03 and 85,080.98 is: 117,410.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,063.88 : 211,226.03 = 85,080.98 : x
  2. Step 2: Convert to fraction form
    153,063.88/211,226.03 = 85,080.98/x
  3. Step 3: Cross multiply
    153,063.88x = 211,226.03 × 85,080.98
  4. Step 4: Simplify right side
    153,063.88x = 17,971,318,055.62
  5. Step 5: Solve for x
    x = 17,971,318,055.62/153,063.88
  6. Step 6: Final answer
    x = 117,410.58

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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.