Home / 119,402.40-164,850.96-74,128.41

Finding the Fourth Proportional to 119,402.40, 164,850.96 and 74,128.41

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Solution

The fourth proportional to 119,402.40, 164,850.96 and 74,128.41 is: 102,344.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,402.40 : 164,850.96 = 74,128.41 : x
  2. Step 2: Convert to fraction form
    119,402.40/164,850.96 = 74,128.41/x
  3. Step 3: Cross multiply
    119,402.40x = 164,850.96 × 74,128.41
  4. Step 4: Simplify right side
    119,402.40x = 12,220,139,551.77
  5. Step 5: Solve for x
    x = 12,220,139,551.77/119,402.40
  6. Step 6: Final answer
    x = 102,344.17

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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.