Home / 118,454.12-163,466.97-64,739.78

Finding the Fourth Proportional to 118,454.12, 163,466.97 and 64,739.78

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Solution

The fourth proportional to 118,454.12, 163,466.97 and 64,739.78 is: 89,341.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,454.12 : 163,466.97 = 64,739.78 : x
  2. Step 2: Convert to fraction form
    118,454.12/163,466.97 = 64,739.78/x
  3. Step 3: Cross multiply
    118,454.12x = 163,466.97 × 64,739.78
  4. Step 4: Simplify right side
    118,454.12x = 10,582,815,675.07
  5. Step 5: Solve for x
    x = 10,582,815,675.07/118,454.12
  6. Step 6: Final answer
    x = 89,341.05

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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.