Home / 156,143.71-234,072.05-56,279.47

Finding the Fourth Proportional to 156,143.71, 234,072.05 and 56,279.47

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Solution

The fourth proportional to 156,143.71, 234,072.05 and 56,279.47 is: 84,367.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,143.71 : 234,072.05 = 56,279.47 : x
  2. Step 2: Convert to fraction form
    156,143.71/234,072.05 = 56,279.47/x
  3. Step 3: Cross multiply
    156,143.71x = 234,072.05 × 56,279.47
  4. Step 4: Simplify right side
    156,143.71x = 13,173,449,886.15
  5. Step 5: Solve for x
    x = 13,173,449,886.15/156,143.71
  6. Step 6: Final answer
    x = 84,367.47

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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.