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Finding the Fourth Proportional to 153,477.60, 211,770.97 and 85,492.88

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Solution

The fourth proportional to 153,477.60, 211,770.97 and 85,492.88 is: 117,964.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,477.60 : 211,770.97 = 85,492.88 : x
  2. Step 2: Convert to fraction form
    153,477.60/211,770.97 = 85,492.88/x
  3. Step 3: Cross multiply
    153,477.60x = 211,770.97 × 85,492.88
  4. Step 4: Simplify right side
    153,477.60x = 18,104,910,125.69
  5. Step 5: Solve for x
    x = 18,104,910,125.69/153,477.60
  6. Step 6: Final answer
    x = 117,964.51

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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.