Home / 156,110.04-215,408.76-91,554.84

Finding the Fourth Proportional to 156,110.04, 215,408.76 and 91,554.84

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Solution

The fourth proportional to 156,110.04, 215,408.76 and 91,554.84 is: 126,332.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,110.04 : 215,408.76 = 91,554.84 : x
  2. Step 2: Convert to fraction form
    156,110.04/215,408.76 = 91,554.84/x
  3. Step 3: Cross multiply
    156,110.04x = 215,408.76 × 91,554.84
  4. Step 4: Simplify right side
    156,110.04x = 19,721,714,556.40
  5. Step 5: Solve for x
    x = 19,721,714,556.40/156,110.04
  6. Step 6: Final answer
    x = 126,332.13

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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.