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Finding the Fourth Proportional to 142,166.88, 213,250.61 and 36,985.68

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Solution

The fourth proportional to 142,166.88, 213,250.61 and 36,985.68 is: 55,478.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,166.88 : 213,250.61 = 36,985.68 : x
  2. Step 2: Convert to fraction form
    142,166.88/213,250.61 = 36,985.68/x
  3. Step 3: Cross multiply
    142,166.88x = 213,250.61 × 36,985.68
  4. Step 4: Simplify right side
    142,166.88x = 7,887,218,636.34
  5. Step 5: Solve for x
    x = 7,887,218,636.34/142,166.88
  6. Step 6: Final answer
    x = 55,478.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.