Home / 119,113.07-164,376.36-65,401.57

Finding the Fourth Proportional to 119,113.07, 164,376.36 and 65,401.57

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Solution

The fourth proportional to 119,113.07, 164,376.36 and 65,401.57 is: 90,254.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,113.07 : 164,376.36 = 65,401.57 : x
  2. Step 2: Convert to fraction form
    119,113.07/164,376.36 = 65,401.57/x
  3. Step 3: Cross multiply
    119,113.07x = 164,376.36 × 65,401.57
  4. Step 4: Simplify right side
    119,113.07x = 10,750,472,014.89
  5. Step 5: Solve for x
    x = 10,750,472,014.89/119,113.07
  6. Step 6: Final answer
    x = 90,254.34

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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.