Home / 118,292.40-163,246.05-64,579.68

Finding the Fourth Proportional to 118,292.40, 163,246.05 and 64,579.68

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Solution

The fourth proportional to 118,292.40, 163,246.05 and 64,579.68 is: 89,121.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,292.40 : 163,246.05 = 64,579.68 : x
  2. Step 2: Convert to fraction form
    118,292.40/163,246.05 = 64,579.68/x
  3. Step 3: Cross multiply
    118,292.40x = 163,246.05 × 64,579.68
  4. Step 4: Simplify right side
    118,292.40x = 10,542,377,670.26
  5. Step 5: Solve for x
    x = 10,542,377,670.26/118,292.40
  6. Step 6: Final answer
    x = 89,121.34

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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.