Home / 156,106.16-215,373.89-101,633.45

Finding the Fourth Proportional to 156,106.16, 215,373.89 and 101,633.45

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Solution

The fourth proportional to 156,106.16, 215,373.89 and 101,633.45 is: 140,219.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,106.16 : 215,373.89 = 101,633.45 : x
  2. Step 2: Convert to fraction form
    156,106.16/215,373.89 = 101,633.45/x
  3. Step 3: Cross multiply
    156,106.16x = 215,373.89 × 101,633.45
  4. Step 4: Simplify right side
    156,106.16x = 21,889,189,895.58
  5. Step 5: Solve for x
    x = 21,889,189,895.58/156,106.16
  6. Step 6: Final answer
    x = 140,219.90

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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.