Home / 156,210.72-234,128.26-71,854.66

Finding the Fourth Proportional to 156,210.72, 234,128.26 and 71,854.66

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Solution

The fourth proportional to 156,210.72, 234,128.26 and 71,854.66 is: 107,695.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,210.72 : 234,128.26 = 71,854.66 : x
  2. Step 2: Convert to fraction form
    156,210.72/234,128.26 = 71,854.66/x
  3. Step 3: Cross multiply
    156,210.72x = 234,128.26 × 71,854.66
  4. Step 4: Simplify right side
    156,210.72x = 16,823,206,518.69
  5. Step 5: Solve for x
    x = 16,823,206,518.69/156,210.72
  6. Step 6: Final answer
    x = 107,695.60

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.