Home / 124,235.67-171,401.55-81,240.33

Finding the Fourth Proportional to 124,235.67, 171,401.55 and 81,240.33

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Solution

The fourth proportional to 124,235.67, 171,401.55 and 81,240.33 is: 112,083.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,235.67 : 171,401.55 = 81,240.33 : x
  2. Step 2: Convert to fraction form
    124,235.67/171,401.55 = 81,240.33/x
  3. Step 3: Cross multiply
    124,235.67x = 171,401.55 × 81,240.33
  4. Step 4: Simplify right side
    124,235.67x = 13,924,718,484.51
  5. Step 5: Solve for x
    x = 13,924,718,484.51/124,235.67
  6. Step 6: Final answer
    x = 112,083.10

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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.