Home / 156,936.32-216,562.93-85,315.72

Finding the Fourth Proportional to 156,936.32, 216,562.93 and 85,315.72

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Solution

The fourth proportional to 156,936.32, 216,562.93 and 85,315.72 is: 117,730.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,936.32 : 216,562.93 = 85,315.72 : x
  2. Step 2: Convert to fraction form
    156,936.32/216,562.93 = 85,315.72/x
  3. Step 3: Cross multiply
    156,936.32x = 216,562.93 × 85,315.72
  4. Step 4: Simplify right side
    156,936.32x = 18,476,222,298.26
  5. Step 5: Solve for x
    x = 18,476,222,298.26/156,936.32
  6. Step 6: Final answer
    x = 117,730.70

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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.