Home / 156,930.01-235,401.16-81,999.29

Finding the Fourth Proportional to 156,930.01, 235,401.16 and 81,999.29

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Solution

The fourth proportional to 156,930.01, 235,401.16 and 81,999.29 is: 123,002.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,930.01 : 235,401.16 = 81,999.29 : x
  2. Step 2: Convert to fraction form
    156,930.01/235,401.16 = 81,999.29/x
  3. Step 3: Cross multiply
    156,930.01x = 235,401.16 × 81,999.29
  4. Step 4: Simplify right side
    156,930.01x = 19,302,727,428.92
  5. Step 5: Solve for x
    x = 19,302,727,428.92/156,930.01
  6. Step 6: Final answer
    x = 123,002.14

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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.