Home / 156,770.14-216,343.41-85,151.35

Finding the Fourth Proportional to 156,770.14, 216,343.41 and 85,151.35

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Solution

The fourth proportional to 156,770.14, 216,343.41 and 85,151.35 is: 117,509.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,770.14 : 216,343.41 = 85,151.35 : x
  2. Step 2: Convert to fraction form
    156,770.14/216,343.41 = 85,151.35/x
  3. Step 3: Cross multiply
    156,770.14x = 216,343.41 × 85,151.35
  4. Step 4: Simplify right side
    156,770.14x = 18,421,932,999.35
  5. Step 5: Solve for x
    x = 18,421,932,999.35/156,770.14
  6. Step 6: Final answer
    x = 117,509.20

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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.