Home / 162,518.40-224,286.78-90,905.04

Finding the Fourth Proportional to 162,518.40, 224,286.78 and 90,905.04

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Solution

The fourth proportional to 162,518.40, 224,286.78 and 90,905.04 is: 125,455.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,518.40 : 224,286.78 = 90,905.04 : x
  2. Step 2: Convert to fraction form
    162,518.40/224,286.78 = 90,905.04/x
  3. Step 3: Cross multiply
    162,518.40x = 224,286.78 × 90,905.04
  4. Step 4: Simplify right side
    162,518.40x = 20,388,798,707.37
  5. Step 5: Solve for x
    x = 20,388,798,707.37/162,518.40
  6. Step 6: Final answer
    x = 125,455.33

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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.