Home / 145,260.64-200,437.86-81,586.24

Finding the Fourth Proportional to 145,260.64, 200,437.86 and 81,586.24

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Solution

The fourth proportional to 145,260.64, 200,437.86 and 81,586.24 is: 112,576.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,260.64 : 200,437.86 = 81,586.24 : x
  2. Step 2: Convert to fraction form
    145,260.64/200,437.86 = 81,586.24/x
  3. Step 3: Cross multiply
    145,260.64x = 200,437.86 × 81,586.24
  4. Step 4: Simplify right side
    145,260.64x = 16,352,971,351.05
  5. Step 5: Solve for x
    x = 16,352,971,351.05/145,260.64
  6. Step 6: Final answer
    x = 112,576.75

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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.