Home / 156,126.02-215,455.48-84,507.57

Finding the Fourth Proportional to 156,126.02, 215,455.48 and 84,507.57

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Solution

The fourth proportional to 156,126.02, 215,455.48 and 84,507.57 is: 116,621.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,126.02 : 215,455.48 = 84,507.57 : x
  2. Step 2: Convert to fraction form
    156,126.02/215,455.48 = 84,507.57/x
  3. Step 3: Cross multiply
    156,126.02x = 215,455.48 × 84,507.57
  4. Step 4: Simplify right side
    156,126.02x = 18,207,618,846.71
  5. Step 5: Solve for x
    x = 18,207,618,846.71/156,126.02
  6. Step 6: Final answer
    x = 116,621.30

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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.