Home / 156,731.30-235,096.95-77,999.30

Finding the Fourth Proportional to 156,731.30, 235,096.95 and 77,999.30

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Solution

The fourth proportional to 156,731.30, 235,096.95 and 77,999.30 is: 116,998.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,731.30 : 235,096.95 = 77,999.30 : x
  2. Step 2: Convert to fraction form
    156,731.30/235,096.95 = 77,999.30/x
  3. Step 3: Cross multiply
    156,731.30x = 235,096.95 × 77,999.30
  4. Step 4: Simplify right side
    156,731.30x = 18,337,397,532.14
  5. Step 5: Solve for x
    x = 18,337,397,532.14/156,731.30
  6. Step 6: Final answer
    x = 116,998.95

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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.