Home / 156,397.23-215,688.83-121,950.50

Finding the Fourth Proportional to 156,397.23, 215,688.83 and 121,950.50

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Solution

The fourth proportional to 156,397.23, 215,688.83 and 121,950.50 is: 168,183.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,397.23 : 215,688.83 = 121,950.50 : x
  2. Step 2: Convert to fraction form
    156,397.23/215,688.83 = 121,950.50/x
  3. Step 3: Cross multiply
    156,397.23x = 215,688.83 × 121,950.50
  4. Step 4: Simplify right side
    156,397.23x = 26,303,358,974.72
  5. Step 5: Solve for x
    x = 26,303,358,974.72/156,397.23
  6. Step 6: Final answer
    x = 168,183.02

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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.