Home / 121,417.24-167,661.54-76,173

Finding the Fourth Proportional to 121,417.24, 167,661.54 and 76,173

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Solution

The fourth proportional to 121,417.24, 167,661.54 and 76,173 is: 105,185.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,417.24 : 167,661.54 = 76,173 : x
  2. Step 2: Convert to fraction form
    121,417.24/167,661.54 = 76,173/x
  3. Step 3: Cross multiply
    121,417.24x = 167,661.54 × 76,173
  4. Step 4: Simplify right side
    121,417.24x = 12,771,282,105.56
  5. Step 5: Solve for x
    x = 12,771,282,105.56/121,417.24
  6. Step 6: Final answer
    x = 105,185.08

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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.