Home / 121,826.48-168,172.36-74,095.16

Finding the Fourth Proportional to 121,826.48, 168,172.36 and 74,095.16

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Solution

The fourth proportional to 121,826.48, 168,172.36 and 74,095.16 is: 102,282.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,826.48 : 168,172.36 = 74,095.16 : x
  2. Step 2: Convert to fraction form
    121,826.48/168,172.36 = 74,095.16/x
  3. Step 3: Cross multiply
    121,826.48x = 168,172.36 × 74,095.16
  4. Step 4: Simplify right side
    121,826.48x = 12,460,756,895.68
  5. Step 5: Solve for x
    x = 12,460,756,895.68/121,826.48
  6. Step 6: Final answer
    x = 102,282.83

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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.