Home / 98,900.16-136,339.36-70,556.64

Finding the Fourth Proportional to 98,900.16, 136,339.36 and 70,556.64

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Solution

The fourth proportional to 98,900.16, 136,339.36 and 70,556.64 is: 97,266.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,900.16 : 136,339.36 = 70,556.64 : x
  2. Step 2: Convert to fraction form
    98,900.16/136,339.36 = 70,556.64/x
  3. Step 3: Cross multiply
    98,900.16x = 136,339.36 × 70,556.64
  4. Step 4: Simplify right side
    98,900.16x = 9,619,647,141.35
  5. Step 5: Solve for x
    x = 9,619,647,141.35/98,900.16
  6. Step 6: Final answer
    x = 97,266.24

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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.