Home / 156,726.45-216,282.96-85,107.69

Finding the Fourth Proportional to 156,726.45, 216,282.96 and 85,107.69

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Solution

The fourth proportional to 156,726.45, 216,282.96 and 85,107.69 is: 117,448.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,726.45 : 216,282.96 = 85,107.69 : x
  2. Step 2: Convert to fraction form
    156,726.45/216,282.96 = 85,107.69/x
  3. Step 3: Cross multiply
    156,726.45x = 216,282.96 × 85,107.69
  4. Step 4: Simplify right side
    156,726.45x = 18,407,343,111.96
  5. Step 5: Solve for x
    x = 18,407,343,111.96/156,726.45
  6. Step 6: Final answer
    x = 117,448.86

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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.