Home / 102,905.82-142,017.66-57,588.35

Finding the Fourth Proportional to 102,905.82, 142,017.66 and 57,588.35

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Solution

The fourth proportional to 102,905.82, 142,017.66 and 57,588.35 is: 79,476.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,905.82 : 142,017.66 = 57,588.35 : x
  2. Step 2: Convert to fraction form
    102,905.82/142,017.66 = 57,588.35/x
  3. Step 3: Cross multiply
    102,905.82x = 142,017.66 × 57,588.35
  4. Step 4: Simplify right side
    102,905.82x = 8,178,562,000.17
  5. Step 5: Solve for x
    x = 8,178,562,000.17/102,905.82
  6. Step 6: Final answer
    x = 79,476.19

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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.