Home / 156,964.23-235,454.51-51,791.40

Finding the Fourth Proportional to 156,964.23, 235,454.51 and 51,791.40

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Solution

The fourth proportional to 156,964.23, 235,454.51 and 51,791.40 is: 77,689.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,964.23 : 235,454.51 = 51,791.40 : x
  2. Step 2: Convert to fraction form
    156,964.23/235,454.51 = 51,791.40/x
  3. Step 3: Cross multiply
    156,964.23x = 235,454.51 × 51,791.40
  4. Step 4: Simplify right side
    156,964.23x = 12,194,518,838.69
  5. Step 5: Solve for x
    x = 12,194,518,838.69/156,964.23
  6. Step 6: Final answer
    x = 77,689.79

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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.