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Finding the Fourth Proportional to 162,509.89, 224,284.79 and 90,904.76

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Solution

The fourth proportional to 162,509.89, 224,284.79 and 90,904.76 is: 125,460.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,509.89 : 224,284.79 = 90,904.76 : x
  2. Step 2: Convert to fraction form
    162,509.89/224,284.79 = 90,904.76/x
  3. Step 3: Cross multiply
    162,509.89x = 224,284.79 × 90,904.76
  4. Step 4: Simplify right side
    162,509.89x = 20,388,555,006.60
  5. Step 5: Solve for x
    x = 20,388,555,006.60/162,509.89
  6. Step 6: Final answer
    x = 125,460.40

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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.