Home / 156,924.48-216,556.80-85,305.12

Finding the Fourth Proportional to 156,924.48, 216,556.80 and 85,305.12

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Solution

The fourth proportional to 156,924.48, 216,556.80 and 85,305.12 is: 117,721.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,924.48 : 216,556.80 = 85,305.12 : x
  2. Step 2: Convert to fraction form
    156,924.48/216,556.80 = 85,305.12/x
  3. Step 3: Cross multiply
    156,924.48x = 216,556.80 × 85,305.12
  4. Step 4: Simplify right side
    156,924.48x = 18,473,403,810.82
  5. Step 5: Solve for x
    x = 18,473,403,810.82/156,924.48
  6. Step 6: Final answer
    x = 117,721.62

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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.