Home / 120,341.46-166,070.34-72,621.12

Finding the Fourth Proportional to 120,341.46, 166,070.34 and 72,621.12

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Solution

The fourth proportional to 120,341.46, 166,070.34 and 72,621.12 is: 100,216.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,341.46 : 166,070.34 = 72,621.12 : x
  2. Step 2: Convert to fraction form
    120,341.46/166,070.34 = 72,621.12/x
  3. Step 3: Cross multiply
    120,341.46x = 166,070.34 × 72,621.12
  4. Step 4: Simplify right side
    120,341.46x = 12,060,214,089.58
  5. Step 5: Solve for x
    x = 12,060,214,089.58/120,341.46
  6. Step 6: Final answer
    x = 100,216.62

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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.