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Finding the Fourth Proportional to 162,275.72, 223,940.48 and 90,655.76

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Solution

The fourth proportional to 162,275.72, 223,940.48 and 90,655.76 is: 125,104.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,275.72 : 223,940.48 = 90,655.76 : x
  2. Step 2: Convert to fraction form
    162,275.72/223,940.48 = 90,655.76/x
  3. Step 3: Cross multiply
    162,275.72x = 223,940.48 × 90,655.76
  4. Step 4: Simplify right side
    162,275.72x = 20,301,494,409.16
  5. Step 5: Solve for x
    x = 20,301,494,409.16/162,275.72
  6. Step 6: Final answer
    x = 125,104.94

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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.