Home / 163,620.96-245,436.92-45,282.40

Finding the Fourth Proportional to 163,620.96, 245,436.92 and 45,282.40

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Solution

The fourth proportional to 163,620.96, 245,436.92 and 45,282.40 is: 67,925.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,620.96 : 245,436.92 = 45,282.40 : x
  2. Step 2: Convert to fraction form
    163,620.96/245,436.92 = 45,282.40/x
  3. Step 3: Cross multiply
    163,620.96x = 245,436.92 × 45,282.40
  4. Step 4: Simplify right side
    163,620.96x = 11,113,972,786.21
  5. Step 5: Solve for x
    x = 11,113,972,786.21/163,620.96
  6. Step 6: Final answer
    x = 67,925.12

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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.