Home / 140,068.40-210,115.64-55,808.24

Finding the Fourth Proportional to 140,068.40, 210,115.64 and 55,808.24

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Solution

The fourth proportional to 140,068.40, 210,115.64 and 55,808.24 is: 83,717.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,068.40 : 210,115.64 = 55,808.24 : x
  2. Step 2: Convert to fraction form
    140,068.40/210,115.64 = 55,808.24/x
  3. Step 3: Cross multiply
    140,068.40x = 210,115.64 × 55,808.24
  4. Step 4: Simplify right side
    140,068.40x = 11,726,184,064.87
  5. Step 5: Solve for x
    x = 11,726,184,064.87/140,068.40
  6. Step 6: Final answer
    x = 83,717.56

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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.