Home / 156,076.12-215,332.33-101,603.42

Finding the Fourth Proportional to 156,076.12, 215,332.33 and 101,603.42

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Solution

The fourth proportional to 156,076.12, 215,332.33 and 101,603.42 is: 140,178.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,076.12 : 215,332.33 = 101,603.42 : x
  2. Step 2: Convert to fraction form
    156,076.12/215,332.33 = 101,603.42/x
  3. Step 3: Cross multiply
    156,076.12x = 215,332.33 × 101,603.42
  4. Step 4: Simplify right side
    156,076.12x = 21,878,501,164.57
  5. Step 5: Solve for x
    x = 21,878,501,164.57/156,076.12
  6. Step 6: Final answer
    x = 140,178.40

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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.