Home / 122,088.12-168,462.36-71,109.24

Finding the Fourth Proportional to 122,088.12, 168,462.36 and 71,109.24

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Solution

The fourth proportional to 122,088.12, 168,462.36 and 71,109.24 is: 98,119.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,088.12 : 168,462.36 = 71,109.24 : x
  2. Step 2: Convert to fraction form
    122,088.12/168,462.36 = 71,109.24/x
  3. Step 3: Cross multiply
    122,088.12x = 168,462.36 × 71,109.24
  4. Step 4: Simplify right side
    122,088.12x = 11,979,230,388.21
  5. Step 5: Solve for x
    x = 11,979,230,388.21/122,088.12
  6. Step 6: Final answer
    x = 98,119.54

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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.