Home / 163,617.96-245,432.42-45,279.40

Finding the Fourth Proportional to 163,617.96, 245,432.42 and 45,279.40

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Solution

The fourth proportional to 163,617.96, 245,432.42 and 45,279.40 is: 67,920.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,617.96 : 245,432.42 = 45,279.40 : x
  2. Step 2: Convert to fraction form
    163,617.96/245,432.42 = 45,279.40/x
  3. Step 3: Cross multiply
    163,617.96x = 245,432.42 × 45,279.40
  4. Step 4: Simplify right side
    163,617.96x = 11,113,032,718.15
  5. Step 5: Solve for x
    x = 11,113,032,718.15/163,617.96
  6. Step 6: Final answer
    x = 67,920.62

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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.