Home / 144,030.24-198,801-83,619.81

Finding the Fourth Proportional to 144,030.24, 198,801 and 83,619.81

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Solution

The fourth proportional to 144,030.24, 198,801 and 83,619.81 is: 115,418.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,030.24 : 198,801 = 83,619.81 : x
  2. Step 2: Convert to fraction form
    144,030.24/198,801 = 83,619.81/x
  3. Step 3: Cross multiply
    144,030.24x = 198,801 × 83,619.81
  4. Step 4: Simplify right side
    144,030.24x = 16,623,701,847.81
  5. Step 5: Solve for x
    x = 16,623,701,847.81/144,030.24
  6. Step 6: Final answer
    x = 115,418.14

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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.