Home / 107,686.91-161,521.13-65,556.06

Finding the Fourth Proportional to 107,686.91, 161,521.13 and 65,556.06

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Solution

The fourth proportional to 107,686.91, 161,521.13 and 65,556.06 is: 98,328.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,686.91 : 161,521.13 = 65,556.06 : x
  2. Step 2: Convert to fraction form
    107,686.91/161,521.13 = 65,556.06/x
  3. Step 3: Cross multiply
    107,686.91x = 161,521.13 × 65,556.06
  4. Step 4: Simplify right side
    107,686.91x = 10,588,688,561.77
  5. Step 5: Solve for x
    x = 10,588,688,561.77/107,686.91
  6. Step 6: Final answer
    x = 98,328.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.