Home / 156,723.46-216,278.81-85,104.68

Finding the Fourth Proportional to 156,723.46, 216,278.81 and 85,104.68

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Solution

The fourth proportional to 156,723.46, 216,278.81 and 85,104.68 is: 117,444.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,723.46 : 216,278.81 = 85,104.68 : x
  2. Step 2: Convert to fraction form
    156,723.46/216,278.81 = 85,104.68/x
  3. Step 3: Cross multiply
    156,723.46x = 216,278.81 × 85,104.68
  4. Step 4: Simplify right side
    156,723.46x = 18,406,337,728.06
  5. Step 5: Solve for x
    x = 18,406,337,728.06/156,723.46
  6. Step 6: Final answer
    x = 117,444.69

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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.