Home / 136,316.08-188,103-100,525.36

Finding the Fourth Proportional to 136,316.08, 188,103 and 100,525.36

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Solution

The fourth proportional to 136,316.08, 188,103 and 100,525.36 is: 138,715.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,316.08 : 188,103 = 100,525.36 : x
  2. Step 2: Convert to fraction form
    136,316.08/188,103 = 100,525.36/x
  3. Step 3: Cross multiply
    136,316.08x = 188,103 × 100,525.36
  4. Step 4: Simplify right side
    136,316.08x = 18,909,121,792.08
  5. Step 5: Solve for x
    x = 18,909,121,792.08/136,316.08
  6. Step 6: Final answer
    x = 138,715.27

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1.5x scale

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.