Home / 98,566.20-147,849.30-72,322.20

Finding the Fourth Proportional to 98,566.20, 147,849.30 and 72,322.20

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Solution

The fourth proportional to 98,566.20, 147,849.30 and 72,322.20 is: 108,483.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,566.20 : 147,849.30 = 72,322.20 : x
  2. Step 2: Convert to fraction form
    98,566.20/147,849.30 = 72,322.20/x
  3. Step 3: Cross multiply
    98,566.20x = 147,849.30 × 72,322.20
  4. Step 4: Simplify right side
    98,566.20x = 10,692,786,644.46
  5. Step 5: Solve for x
    x = 10,692,786,644.46/98,566.20
  6. Step 6: Final answer
    x = 108,483.30

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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.