Home / 156,621.24-216,241.38-92,979.48

Finding the Fourth Proportional to 156,621.24, 216,241.38 and 92,979.48

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Solution

The fourth proportional to 156,621.24, 216,241.38 and 92,979.48 is: 128,373.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,621.24 : 216,241.38 = 92,979.48 : x
  2. Step 2: Convert to fraction form
    156,621.24/216,241.38 = 92,979.48/x
  3. Step 3: Cross multiply
    156,621.24x = 216,241.38 × 92,979.48
  4. Step 4: Simplify right side
    156,621.24x = 20,106,011,066.88
  5. Step 5: Solve for x
    x = 20,106,011,066.88/156,621.24
  6. Step 6: Final answer
    x = 128,373.46

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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.