Home / 156,837.45-216,436.65-85,217.67

Finding the Fourth Proportional to 156,837.45, 216,436.65 and 85,217.67

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Solution

The fourth proportional to 156,837.45, 216,436.65 and 85,217.67 is: 117,600.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,837.45 : 216,436.65 = 85,217.67 : x
  2. Step 2: Convert to fraction form
    156,837.45/216,436.65 = 85,217.67/x
  3. Step 3: Cross multiply
    156,837.45x = 216,436.65 × 85,217.67
  4. Step 4: Simplify right side
    156,837.45x = 18,444,227,015.61
  5. Step 5: Solve for x
    x = 18,444,227,015.61/156,837.45
  6. Step 6: Final answer
    x = 117,600.91

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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.