Home / 113,587.25-156,732.08-65,831.40

Finding the Fourth Proportional to 113,587.25, 156,732.08 and 65,831.40

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Solution

The fourth proportional to 113,587.25, 156,732.08 and 65,831.40 is: 90,836.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,587.25 : 156,732.08 = 65,831.40 : x
  2. Step 2: Convert to fraction form
    113,587.25/156,732.08 = 65,831.40/x
  3. Step 3: Cross multiply
    113,587.25x = 156,732.08 × 65,831.40
  4. Step 4: Simplify right side
    113,587.25x = 10,317,891,922.16
  5. Step 5: Solve for x
    x = 10,317,891,922.16/113,587.25
  6. Step 6: Final answer
    x = 90,836.71

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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.