Home / 118,304.90-163,260.31-64,589.30

Finding the Fourth Proportional to 118,304.90, 163,260.31 and 64,589.30

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Solution

The fourth proportional to 118,304.90, 163,260.31 and 64,589.30 is: 89,132.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,304.90 : 163,260.31 = 64,589.30 : x
  2. Step 2: Convert to fraction form
    118,304.90/163,260.31 = 64,589.30/x
  3. Step 3: Cross multiply
    118,304.90x = 163,260.31 × 64,589.30
  4. Step 4: Simplify right side
    118,304.90x = 10,544,869,140.68
  5. Step 5: Solve for x
    x = 10,544,869,140.68/118,304.90
  6. Step 6: Final answer
    x = 89,132.99

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1.5x scale

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.