Home / 143,520.36-198,058.08-79,858.14

Finding the Fourth Proportional to 143,520.36, 198,058.08 and 79,858.14

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Solution

The fourth proportional to 143,520.36, 198,058.08 and 79,858.14 is: 110,204.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,520.36 : 198,058.08 = 79,858.14 : x
  2. Step 2: Convert to fraction form
    143,520.36/198,058.08 = 79,858.14/x
  3. Step 3: Cross multiply
    143,520.36x = 198,058.08 × 79,858.14
  4. Step 4: Simplify right side
    143,520.36x = 15,816,549,880.77
  5. Step 5: Solve for x
    x = 15,816,549,880.77/143,520.36
  6. Step 6: Final answer
    x = 110,204.22

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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.