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Finding the Fourth Proportional to 162,130.34, 223,737.80 and 90,511.56

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Solution

The fourth proportional to 162,130.34, 223,737.80 and 90,511.56 is: 124,904.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,130.34 : 223,737.80 = 90,511.56 : x
  2. Step 2: Convert to fraction form
    162,130.34/223,737.80 = 90,511.56/x
  3. Step 3: Cross multiply
    162,130.34x = 223,737.80 × 90,511.56
  4. Step 4: Simplify right side
    162,130.34x = 20,250,856,856.41
  5. Step 5: Solve for x
    x = 20,250,856,856.41/162,130.34
  6. Step 6: Final answer
    x = 124,904.79

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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.