Home / 118,293.40-163,247.43-64,580.68

Finding the Fourth Proportional to 118,293.40, 163,247.43 and 64,580.68

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Solution

The fourth proportional to 118,293.40, 163,247.43 and 64,580.68 is: 89,122.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,293.40 : 163,247.43 = 64,580.68 : x
  2. Step 2: Convert to fraction form
    118,293.40/163,247.43 = 64,580.68/x
  3. Step 3: Cross multiply
    118,293.40x = 163,247.43 × 64,580.68
  4. Step 4: Simplify right side
    118,293.40x = 10,542,630,037.65
  5. Step 5: Solve for x
    x = 10,542,630,037.65/118,293.40
  6. Step 6: Final answer
    x = 89,122.72

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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.