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Finding the Fourth Proportional to 162,148.80, 223,768.92 and 90,525.36

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Solution

The fourth proportional to 162,148.80, 223,768.92 and 90,525.36 is: 124,926.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,148.80 : 223,768.92 = 90,525.36 : x
  2. Step 2: Convert to fraction form
    162,148.80/223,768.92 = 90,525.36/x
  3. Step 3: Cross multiply
    162,148.80x = 223,768.92 × 90,525.36
  4. Step 4: Simplify right side
    162,148.80x = 20,256,762,039.81
  5. Step 5: Solve for x
    x = 20,256,762,039.81/162,148.80
  6. Step 6: Final answer
    x = 124,926.99

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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.