Home / 98,835.22-136,358.13-68,612.50

Finding the Fourth Proportional to 98,835.22, 136,358.13 and 68,612.50

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Solution

The fourth proportional to 98,835.22, 136,358.13 and 68,612.50 is: 94,661.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,835.22 : 136,358.13 = 68,612.50 : x
  2. Step 2: Convert to fraction form
    98,835.22/136,358.13 = 68,612.50/x
  3. Step 3: Cross multiply
    98,835.22x = 136,358.13 × 68,612.50
  4. Step 4: Simplify right side
    98,835.22x = 9,355,872,194.63
  5. Step 5: Solve for x
    x = 9,355,872,194.63/98,835.22
  6. Step 6: Final answer
    x = 94,661.32

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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.