Home / 156,934.37-216,566.86-85,316.20

Finding the Fourth Proportional to 156,934.37, 216,566.86 and 85,316.20

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Solution

The fourth proportional to 156,934.37, 216,566.86 and 85,316.20 is: 117,734.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,934.37 : 216,566.86 = 85,316.20 : x
  2. Step 2: Convert to fraction form
    156,934.37/216,566.86 = 85,316.20/x
  3. Step 3: Cross multiply
    156,934.37x = 216,566.86 × 85,316.20
  4. Step 4: Simplify right side
    156,934.37x = 18,476,661,541.13
  5. Step 5: Solve for x
    x = 18,476,661,541.13/156,934.37
  6. Step 6: Final answer
    x = 117,734.96

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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.