Home / 149,917.60-224,746.80-90,690.40

Finding the Fourth Proportional to 149,917.60, 224,746.80 and 90,690.40

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Solution

The fourth proportional to 149,917.60, 224,746.80 and 90,690.40 is: 135,957.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,917.60 : 224,746.80 = 90,690.40 : x
  2. Step 2: Convert to fraction form
    149,917.60/224,746.80 = 90,690.40/x
  3. Step 3: Cross multiply
    149,917.60x = 224,746.80 × 90,690.40
  4. Step 4: Simplify right side
    149,917.60x = 20,382,377,190.72
  5. Step 5: Solve for x
    x = 20,382,377,190.72/149,917.60
  6. Step 6: Final answer
    x = 135,957.20

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1.5x scale

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.