Home / 141,686.16-212,660.64-71,614.68

Finding the Fourth Proportional to 141,686.16, 212,660.64 and 71,614.68

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Solution

The fourth proportional to 141,686.16, 212,660.64 and 71,614.68 is: 107,488.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,686.16 : 212,660.64 = 71,614.68 : x
  2. Step 2: Convert to fraction form
    141,686.16/212,660.64 = 71,614.68/x
  3. Step 3: Cross multiply
    141,686.16x = 212,660.64 × 71,614.68
  4. Step 4: Simplify right side
    141,686.16x = 15,229,623,682.20
  5. Step 5: Solve for x
    x = 15,229,623,682.20/141,686.16
  6. Step 6: Final answer
    x = 107,488.44

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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.