Home / 102,970.22-142,091.10-62,679.51

Finding the Fourth Proportional to 102,970.22, 142,091.10 and 62,679.51

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Solution

The fourth proportional to 102,970.22, 142,091.10 and 62,679.51 is: 86,492.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,970.22 : 142,091.10 = 62,679.51 : x
  2. Step 2: Convert to fraction form
    102,970.22/142,091.10 = 62,679.51/x
  3. Step 3: Cross multiply
    102,970.22x = 142,091.10 × 62,679.51
  4. Step 4: Simplify right side
    102,970.22x = 8,906,200,523.36
  5. Step 5: Solve for x
    x = 8,906,200,523.36/102,970.22
  6. Step 6: Final answer
    x = 86,492.98

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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.