Home / 113,639.91-156,820.19-62,651.45

Finding the Fourth Proportional to 113,639.91, 156,820.19 and 62,651.45

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Solution

The fourth proportional to 113,639.91, 156,820.19 and 62,651.45 is: 86,457.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,639.91 : 156,820.19 = 62,651.45 : x
  2. Step 2: Convert to fraction form
    113,639.91/156,820.19 = 62,651.45/x
  3. Step 3: Cross multiply
    113,639.91x = 156,820.19 × 62,651.45
  4. Step 4: Simplify right side
    113,639.91x = 9,825,011,195.42
  5. Step 5: Solve for x
    x = 9,825,011,195.42/113,639.91
  6. Step 6: Final answer
    x = 86,457.40

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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.