Home / 156,698.18-216,242.24-85,076.76

Finding the Fourth Proportional to 156,698.18, 216,242.24 and 85,076.76

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Solution

The fourth proportional to 156,698.18, 216,242.24 and 85,076.76 is: 117,405.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,698.18 : 216,242.24 = 85,076.76 : x
  2. Step 2: Convert to fraction form
    156,698.18/216,242.24 = 85,076.76/x
  3. Step 3: Cross multiply
    156,698.18x = 216,242.24 × 85,076.76
  4. Step 4: Simplify right side
    156,698.18x = 18,397,189,154.34
  5. Step 5: Solve for x
    x = 18,397,189,154.34/156,698.18
  6. Step 6: Final answer
    x = 117,405.25

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Half scale
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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.