Home / 121,429.12-167,618.35-91,301.93

Finding the Fourth Proportional to 121,429.12, 167,618.35 and 91,301.93

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Solution

The fourth proportional to 121,429.12, 167,618.35 and 91,301.93 is: 126,031.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,429.12 : 167,618.35 = 91,301.93 : x
  2. Step 2: Convert to fraction form
    121,429.12/167,618.35 = 91,301.93/x
  3. Step 3: Cross multiply
    121,429.12x = 167,618.35 × 91,301.93
  4. Step 4: Simplify right side
    121,429.12x = 15,303,878,858.42
  5. Step 5: Solve for x
    x = 15,303,878,858.42/121,429.12
  6. Step 6: Final answer
    x = 126,031.37

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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.