Home / 156,730.19-216,288.45-85,110.20

Finding the Fourth Proportional to 156,730.19, 216,288.45 and 85,110.20

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Solution

The fourth proportional to 156,730.19, 216,288.45 and 85,110.20 is: 117,452.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,730.19 : 216,288.45 = 85,110.20 : x
  2. Step 2: Convert to fraction form
    156,730.19/216,288.45 = 85,110.20/x
  3. Step 3: Cross multiply
    156,730.19x = 216,288.45 × 85,110.20
  4. Step 4: Simplify right side
    156,730.19x = 18,408,353,237.19
  5. Step 5: Solve for x
    x = 18,408,353,237.19/156,730.19
  6. Step 6: Final answer
    x = 117,452.50

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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.