Home / 147,816.36-203,986.76-84,154.15

Finding the Fourth Proportional to 147,816.36, 203,986.76 and 84,154.15

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Solution

The fourth proportional to 147,816.36, 203,986.76 and 84,154.15 is: 116,132.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,816.36 : 203,986.76 = 84,154.15 : x
  2. Step 2: Convert to fraction form
    147,816.36/203,986.76 = 84,154.15/x
  3. Step 3: Cross multiply
    147,816.36x = 203,986.76 × 84,154.15
  4. Step 4: Simplify right side
    147,816.36x = 17,166,332,864.42
  5. Step 5: Solve for x
    x = 17,166,332,864.42/147,816.36
  6. Step 6: Final answer
    x = 116,132.84

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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.