Home / 156,739.23-216,366.33-105,820.92

Finding the Fourth Proportional to 156,739.23, 216,366.33 and 105,820.92

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Solution

The fourth proportional to 156,739.23, 216,366.33 and 105,820.92 is: 146,077.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,739.23 : 216,366.33 = 105,820.92 : x
  2. Step 2: Convert to fraction form
    156,739.23/216,366.33 = 105,820.92/x
  3. Step 3: Cross multiply
    156,739.23x = 216,366.33 × 105,820.92
  4. Step 4: Simplify right side
    156,739.23x = 22,896,084,097.62
  5. Step 5: Solve for x
    x = 22,896,084,097.62/156,739.23
  6. Step 6: Final answer
    x = 146,077.56

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1.5x scale

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.