Home / 98,889.12-136,492.56-60,661.44

Finding the Fourth Proportional to 98,889.12, 136,492.56 and 60,661.44

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Solution

The fourth proportional to 98,889.12, 136,492.56 and 60,661.44 is: 83,728.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,889.12 : 136,492.56 = 60,661.44 : x
  2. Step 2: Convert to fraction form
    98,889.12/136,492.56 = 60,661.44/x
  3. Step 3: Cross multiply
    98,889.12x = 136,492.56 × 60,661.44
  4. Step 4: Simplify right side
    98,889.12x = 8,279,835,238.89
  5. Step 5: Solve for x
    x = 8,279,835,238.89/98,889.12
  6. Step 6: Final answer
    x = 83,728.48

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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.