Home / 105,183.20-145,153.61-59,864.63

Finding the Fourth Proportional to 105,183.20, 145,153.61 and 59,864.63

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Solution

The fourth proportional to 105,183.20, 145,153.61 and 59,864.63 is: 82,613.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,183.20 : 145,153.61 = 59,864.63 : x
  2. Step 2: Convert to fraction form
    105,183.20/145,153.61 = 59,864.63/x
  3. Step 3: Cross multiply
    105,183.20x = 145,153.61 × 59,864.63
  4. Step 4: Simplify right side
    105,183.20x = 8,689,567,155.81
  5. Step 5: Solve for x
    x = 8,689,567,155.81/105,183.20
  6. Step 6: Final answer
    x = 82,613.64

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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.