Home / 158,453.07-218,670.56-86,832.47

Finding the Fourth Proportional to 158,453.07, 218,670.56 and 86,832.47

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Solution

The fourth proportional to 158,453.07, 218,670.56 and 86,832.47 is: 119,831.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,453.07 : 218,670.56 = 86,832.47 : x
  2. Step 2: Convert to fraction form
    158,453.07/218,670.56 = 86,832.47/x
  3. Step 3: Cross multiply
    158,453.07x = 218,670.56 × 86,832.47
  4. Step 4: Simplify right side
    158,453.07x = 18,987,703,313.57
  5. Step 5: Solve for x
    x = 18,987,703,313.57/158,453.07
  6. Step 6: Final answer
    x = 119,831.72

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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.