Home / 156,126.04-215,487.66-98,728.72

Finding the Fourth Proportional to 156,126.04, 215,487.66 and 98,728.72

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Solution

The fourth proportional to 156,126.04, 215,487.66 and 98,728.72 is: 136,266.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,126.04 : 215,487.66 = 98,728.72 : x
  2. Step 2: Convert to fraction form
    156,126.04/215,487.66 = 98,728.72/x
  3. Step 3: Cross multiply
    156,126.04x = 215,487.66 × 98,728.72
  4. Step 4: Simplify right side
    156,126.04x = 21,274,820,847.60
  5. Step 5: Solve for x
    x = 21,274,820,847.60/156,126.04
  6. Step 6: Final answer
    x = 136,266.96

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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.