Home / 156,235.16-215,604.45-84,615.18

Finding the Fourth Proportional to 156,235.16, 215,604.45 and 84,615.18

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Solution

The fourth proportional to 156,235.16, 215,604.45 and 84,615.18 is: 116,768.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,235.16 : 215,604.45 = 84,615.18 : x
  2. Step 2: Convert to fraction form
    156,235.16/215,604.45 = 84,615.18/x
  3. Step 3: Cross multiply
    156,235.16x = 215,604.45 × 84,615.18
  4. Step 4: Simplify right side
    156,235.16x = 18,243,409,345.55
  5. Step 5: Solve for x
    x = 18,243,409,345.55/156,235.16
  6. Step 6: Final answer
    x = 116,768.91

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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.