Home / 156,942.60-216,582.15-85,322.67

Finding the Fourth Proportional to 156,942.60, 216,582.15 and 85,322.67

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Solution

The fourth proportional to 156,942.60, 216,582.15 and 85,322.67 is: 117,746.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,942.60 : 216,582.15 = 85,322.67 : x
  2. Step 2: Convert to fraction form
    156,942.60/216,582.15 = 85,322.67/x
  3. Step 3: Cross multiply
    156,942.60x = 216,582.15 × 85,322.67
  4. Step 4: Simplify right side
    156,942.60x = 18,479,367,312.34
  5. Step 5: Solve for x
    x = 18,479,367,312.34/156,942.60
  6. Step 6: Final answer
    x = 117,746.03

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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.