Home / 152,742.88-210,782.60-85,673.44

Finding the Fourth Proportional to 152,742.88, 210,782.60 and 85,673.44

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Solution

The fourth proportional to 152,742.88, 210,782.60 and 85,673.44 is: 118,227.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,742.88 : 210,782.60 = 85,673.44 : x
  2. Step 2: Convert to fraction form
    152,742.88/210,782.60 = 85,673.44/x
  3. Step 3: Cross multiply
    152,742.88x = 210,782.60 × 85,673.44
  4. Step 4: Simplify right side
    152,742.88x = 18,058,470,434.14
  5. Step 5: Solve for x
    x = 18,058,470,434.14/152,742.88
  6. Step 6: Final answer
    x = 118,227.90

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.