Home / 156,725.46-216,281.57-85,106.68

Finding the Fourth Proportional to 156,725.46, 216,281.57 and 85,106.68

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Solution

The fourth proportional to 156,725.46, 216,281.57 and 85,106.68 is: 117,447.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,725.46 : 216,281.57 = 85,106.68 : x
  2. Step 2: Convert to fraction form
    156,725.46/216,281.57 = 85,106.68/x
  3. Step 3: Cross multiply
    156,725.46x = 216,281.57 × 85,106.68
  4. Step 4: Simplify right side
    156,725.46x = 18,407,006,367.89
  5. Step 5: Solve for x
    x = 18,407,006,367.89/156,725.46
  6. Step 6: Final answer
    x = 117,447.45

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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.