Home / 147,810.96-203,976-84,147.84

Finding the Fourth Proportional to 147,810.96, 203,976 and 84,147.84

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Solution

The fourth proportional to 147,810.96, 203,976 and 84,147.84 is: 116,122.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,810.96 : 203,976 = 84,147.84 : x
  2. Step 2: Convert to fraction form
    147,810.96/203,976 = 84,147.84/x
  3. Step 3: Cross multiply
    147,810.96x = 203,976 × 84,147.84
  4. Step 4: Simplify right side
    147,810.96x = 17,164,139,811.84
  5. Step 5: Solve for x
    x = 17,164,139,811.84/147,810.96
  6. Step 6: Final answer
    x = 116,122.24

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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.