Home / 113,409.86-169,920.38-80,070.26

Finding the Fourth Proportional to 113,409.86, 169,920.38 and 80,070.26

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Solution

The fourth proportional to 113,409.86, 169,920.38 and 80,070.26 is: 119,968.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,409.86 : 169,920.38 = 80,070.26 : x
  2. Step 2: Convert to fraction form
    113,409.86/169,920.38 = 80,070.26/x
  3. Step 3: Cross multiply
    113,409.86x = 169,920.38 × 80,070.26
  4. Step 4: Simplify right side
    113,409.86x = 13,605,569,005.90
  5. Step 5: Solve for x
    x = 13,605,569,005.90/113,409.86
  6. Step 6: Final answer
    x = 119,968.13

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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.