Home / 144,032.10-198,857.93-128,898.75

Finding the Fourth Proportional to 144,032.10, 198,857.93 and 128,898.75

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Solution

The fourth proportional to 144,032.10, 198,857.93 and 128,898.75 is: 177,964.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,032.10 : 198,857.93 = 128,898.75 : x
  2. Step 2: Convert to fraction form
    144,032.10/198,857.93 = 128,898.75/x
  3. Step 3: Cross multiply
    144,032.10x = 198,857.93 × 128,898.75
  4. Step 4: Simplify right side
    144,032.10x = 25,632,537,960.09
  5. Step 5: Solve for x
    x = 25,632,537,960.09/144,032.10
  6. Step 6: Final answer
    x = 177,964.06

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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.