Home / 156,667.55-216,200.97-85,047.59

Finding the Fourth Proportional to 156,667.55, 216,200.97 and 85,047.59

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Solution

The fourth proportional to 156,667.55, 216,200.97 and 85,047.59 is: 117,365.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,667.55 : 216,200.97 = 85,047.59 : x
  2. Step 2: Convert to fraction form
    156,667.55/216,200.97 = 85,047.59/x
  3. Step 3: Cross multiply
    156,667.55x = 216,200.97 × 85,047.59
  4. Step 4: Simplify right side
    156,667.55x = 18,387,371,994.66
  5. Step 5: Solve for x
    x = 18,387,371,994.66/156,667.55
  6. Step 6: Final answer
    x = 117,365.55

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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.