Home / 163,631.08-245,149.98-74,958.76

Finding the Fourth Proportional to 163,631.08, 245,149.98 and 74,958.76

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Solution

The fourth proportional to 163,631.08, 245,149.98 and 74,958.76 is: 112,302.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,631.08 : 245,149.98 = 74,958.76 : x
  2. Step 2: Convert to fraction form
    163,631.08/245,149.98 = 74,958.76/x
  3. Step 3: Cross multiply
    163,631.08x = 245,149.98 × 74,958.76
  4. Step 4: Simplify right side
    163,631.08x = 18,376,138,514.82
  5. Step 5: Solve for x
    x = 18,376,138,514.82/163,631.08
  6. Step 6: Final answer
    x = 112,302.25

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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.