Home / 142,758.77-214,139.63-57,409.11

Finding the Fourth Proportional to 142,758.77, 214,139.63 and 57,409.11

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Solution

The fourth proportional to 142,758.77, 214,139.63 and 57,409.11 is: 86,114.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,758.77 : 214,139.63 = 57,409.11 : x
  2. Step 2: Convert to fraction form
    142,758.77/214,139.63 = 57,409.11/x
  3. Step 3: Cross multiply
    142,758.77x = 214,139.63 × 57,409.11
  4. Step 4: Simplify right side
    142,758.77x = 12,293,565,286.98
  5. Step 5: Solve for x
    x = 12,293,565,286.98/142,758.77
  6. Step 6: Final answer
    x = 86,114.26

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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.