Home / 117,803.76-162,345.24-84,211.44

Finding the Fourth Proportional to 117,803.76, 162,345.24 and 84,211.44

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Solution

The fourth proportional to 117,803.76, 162,345.24 and 84,211.44 is: 116,051.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,803.76 : 162,345.24 = 84,211.44 : x
  2. Step 2: Convert to fraction form
    117,803.76/162,345.24 = 84,211.44/x
  3. Step 3: Cross multiply
    117,803.76x = 162,345.24 × 84,211.44
  4. Step 4: Simplify right side
    117,803.76x = 13,671,326,437.55
  5. Step 5: Solve for x
    x = 13,671,326,437.55/117,803.76
  6. Step 6: Final answer
    x = 116,051.70

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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.