Home / 121,244.34-167,386.59-81,026.22

Finding the Fourth Proportional to 121,244.34, 167,386.59 and 81,026.22

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Solution

The fourth proportional to 121,244.34, 167,386.59 and 81,026.22 is: 111,862.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,244.34 : 167,386.59 = 81,026.22 : x
  2. Step 2: Convert to fraction form
    121,244.34/167,386.59 = 81,026.22/x
  3. Step 3: Cross multiply
    121,244.34x = 167,386.59 × 81,026.22
  4. Step 4: Simplify right side
    121,244.34x = 13,562,702,666.39
  5. Step 5: Solve for x
    x = 13,562,702,666.39/121,244.34
  6. Step 6: Final answer
    x = 111,862.56

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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.