Home / 156,985.34-217,210.23-136,884.11

Finding the Fourth Proportional to 156,985.34, 217,210.23 and 136,884.11

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Solution

The fourth proportional to 156,985.34, 217,210.23 and 136,884.11 is: 189,397.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,985.34 : 217,210.23 = 136,884.11 : x
  2. Step 2: Convert to fraction form
    156,985.34/217,210.23 = 136,884.11/x
  3. Step 3: Cross multiply
    156,985.34x = 217,210.23 × 136,884.11
  4. Step 4: Simplify right side
    156,985.34x = 29,732,627,930.39
  5. Step 5: Solve for x
    x = 29,732,627,930.39/156,985.34
  6. Step 6: Final answer
    x = 189,397.49

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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.