Home / 289,116.20-433,686.46-102,128.68

Finding the Fourth Proportional to 289,116.20, 433,686.46 and 102,128.68

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Solution

The fourth proportional to 289,116.20, 433,686.46 and 102,128.68 is: 153,197.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,116.20 : 433,686.46 = 102,128.68 : x
  2. Step 2: Convert to fraction form
    289,116.20/433,686.46 = 102,128.68/x
  3. Step 3: Cross multiply
    289,116.20x = 433,686.46 × 102,128.68
  4. Step 4: Simplify right side
    289,116.20x = 44,291,825,693.67
  5. Step 5: Solve for x
    x = 44,291,825,693.67/289,116.20
  6. Step 6: Final answer
    x = 153,197.32

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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.