Home / 140,308.40-210,324.06-56,017.78

Finding the Fourth Proportional to 140,308.40, 210,324.06 and 56,017.78

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Solution

The fourth proportional to 140,308.40, 210,324.06 and 56,017.78 is: 83,971.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,308.40 : 210,324.06 = 56,017.78 : x
  2. Step 2: Convert to fraction form
    140,308.40/210,324.06 = 56,017.78/x
  3. Step 3: Cross multiply
    140,308.40x = 210,324.06 × 56,017.78
  4. Step 4: Simplify right side
    140,308.40x = 11,781,886,921.79
  5. Step 5: Solve for x
    x = 11,781,886,921.79/140,308.40
  6. Step 6: Final answer
    x = 83,971.36

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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.