Home / 142,686.29-214,031.53-67,814.08

Finding the Fourth Proportional to 142,686.29, 214,031.53 and 67,814.08

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Solution

The fourth proportional to 142,686.29, 214,031.53 and 67,814.08 is: 101,722.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,686.29 : 214,031.53 = 67,814.08 : x
  2. Step 2: Convert to fraction form
    142,686.29/214,031.53 = 67,814.08/x
  3. Step 3: Cross multiply
    142,686.29x = 214,031.53 × 67,814.08
  4. Step 4: Simplify right side
    142,686.29x = 14,514,350,847.63
  5. Step 5: Solve for x
    x = 14,514,350,847.63/142,686.29
  6. Step 6: Final answer
    x = 101,722.11

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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.