Home / 119,113.05-164,376.33-65,401.54

Finding the Fourth Proportional to 119,113.05, 164,376.33 and 65,401.54

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Solution

The fourth proportional to 119,113.05, 164,376.33 and 65,401.54 is: 90,254.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,113.05 : 164,376.33 = 65,401.54 : x
  2. Step 2: Convert to fraction form
    119,113.05/164,376.33 = 65,401.54/x
  3. Step 3: Cross multiply
    119,113.05x = 164,376.33 × 65,401.54
  4. Step 4: Simplify right side
    119,113.05x = 10,750,465,121.55
  5. Step 5: Solve for x
    x = 10,750,465,121.55/119,113.05
  6. Step 6: Final answer
    x = 90,254.30

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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.