Home / 156,721.40-235,116.66-51,536.12

Finding the Fourth Proportional to 156,721.40, 235,116.66 and 51,536.12

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Solution

The fourth proportional to 156,721.40, 235,116.66 and 51,536.12 is: 77,315.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,721.40 : 235,116.66 = 51,536.12 : x
  2. Step 2: Convert to fraction form
    156,721.40/235,116.66 = 51,536.12/x
  3. Step 3: Cross multiply
    156,721.40x = 235,116.66 × 51,536.12
  4. Step 4: Simplify right side
    156,721.40x = 12,117,000,403.76
  5. Step 5: Solve for x
    x = 12,117,000,403.76/156,721.40
  6. Step 6: Final answer
    x = 77,315.54

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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.