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Finding the Fourth Proportional to 146,894.80, 220,415.10 and 83,763.40

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Solution

The fourth proportional to 146,894.80, 220,415.10 and 83,763.40 is: 125,686.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,894.80 : 220,415.10 = 83,763.40 : x
  2. Step 2: Convert to fraction form
    146,894.80/220,415.10 = 83,763.40/x
  3. Step 3: Cross multiply
    146,894.80x = 220,415.10 × 83,763.40
  4. Step 4: Simplify right side
    146,894.80x = 18,462,718,187.34
  5. Step 5: Solve for x
    x = 18,462,718,187.34/146,894.80
  6. Step 6: Final answer
    x = 125,686.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.