Home / 143,630.48-198,294.94-127,668.79

Finding the Fourth Proportional to 143,630.48, 198,294.94 and 127,668.79

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Solution

The fourth proportional to 143,630.48, 198,294.94 and 127,668.79 is: 176,258.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,630.48 : 198,294.94 = 127,668.79 : x
  2. Step 2: Convert to fraction form
    143,630.48/198,294.94 = 127,668.79/x
  3. Step 3: Cross multiply
    143,630.48x = 198,294.94 × 127,668.79
  4. Step 4: Simplify right side
    143,630.48x = 25,316,075,052.92
  5. Step 5: Solve for x
    x = 25,316,075,052.92/143,630.48
  6. Step 6: Final answer
    x = 176,258.38

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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.