Home / 142,340.90-213,587.48-92,409.26

Finding the Fourth Proportional to 142,340.90, 213,587.48 and 92,409.26

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Solution

The fourth proportional to 142,340.90, 213,587.48 and 92,409.26 is: 138,663.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,340.90 : 213,587.48 = 92,409.26 : x
  2. Step 2: Convert to fraction form
    142,340.90/213,587.48 = 92,409.26/x
  3. Step 3: Cross multiply
    142,340.90x = 213,587.48 × 92,409.26
  4. Step 4: Simplify right side
    142,340.90x = 19,737,460,135.15
  5. Step 5: Solve for x
    x = 19,737,460,135.15/142,340.90
  6. Step 6: Final answer
    x = 138,663.31

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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.