Home / 110,829.96-153,112.14-72,680.04

Finding the Fourth Proportional to 110,829.96, 153,112.14 and 72,680.04

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Solution

The fourth proportional to 110,829.96, 153,112.14 and 72,680.04 is: 100,407.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,829.96 : 153,112.14 = 72,680.04 : x
  2. Step 2: Convert to fraction form
    110,829.96/153,112.14 = 72,680.04/x
  3. Step 3: Cross multiply
    110,829.96x = 153,112.14 × 72,680.04
  4. Step 4: Simplify right side
    110,829.96x = 11,128,196,459.69
  5. Step 5: Solve for x
    x = 11,128,196,459.69/110,829.96
  6. Step 6: Final answer
    x = 100,407.84

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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.