Home / 147,257.22-203,210.36-86,831.60

Finding the Fourth Proportional to 147,257.22, 203,210.36 and 86,831.60

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Solution

The fourth proportional to 147,257.22, 203,210.36 and 86,831.60 is: 119,824.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,257.22 : 203,210.36 = 86,831.60 : x
  2. Step 2: Convert to fraction form
    147,257.22/203,210.36 = 86,831.60/x
  3. Step 3: Cross multiply
    147,257.22x = 203,210.36 × 86,831.60
  4. Step 4: Simplify right side
    147,257.22x = 17,645,080,695.38
  5. Step 5: Solve for x
    x = 17,645,080,695.38/147,257.22
  6. Step 6: Final answer
    x = 119,824.89

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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.