Home / 121,750.36-168,024.42-70,083.16

Finding the Fourth Proportional to 121,750.36, 168,024.42 and 70,083.16

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Solution

The fourth proportional to 121,750.36, 168,024.42 and 70,083.16 is: 96,719.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,750.36 : 168,024.42 = 70,083.16 : x
  2. Step 2: Convert to fraction form
    121,750.36/168,024.42 = 70,083.16/x
  3. Step 3: Cross multiply
    121,750.36x = 168,024.42 × 70,083.16
  4. Step 4: Simplify right side
    121,750.36x = 11,775,682,310.77
  5. Step 5: Solve for x
    x = 11,775,682,310.77/121,750.36
  6. Step 6: Final answer
    x = 96,719.90

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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.