Home / 156,501.72-215,900.64-92,816.28

Finding the Fourth Proportional to 156,501.72, 215,900.64 and 92,816.28

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Solution

The fourth proportional to 156,501.72, 215,900.64 and 92,816.28 is: 128,043.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,501.72 : 215,900.64 = 92,816.28 : x
  2. Step 2: Convert to fraction form
    156,501.72/215,900.64 = 92,816.28/x
  3. Step 3: Cross multiply
    156,501.72x = 215,900.64 × 92,816.28
  4. Step 4: Simplify right side
    156,501.72x = 20,039,094,254.42
  5. Step 5: Solve for x
    x = 20,039,094,254.42/156,501.72
  6. Step 6: Final answer
    x = 128,043.92

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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.