Home / 144,058.16-198,810.24-80,408.40

Finding the Fourth Proportional to 144,058.16, 198,810.24 and 80,408.40

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Solution

The fourth proportional to 144,058.16, 198,810.24 and 80,408.40 is: 110,969.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,058.16 : 198,810.24 = 80,408.40 : x
  2. Step 2: Convert to fraction form
    144,058.16/198,810.24 = 80,408.40/x
  3. Step 3: Cross multiply
    144,058.16x = 198,810.24 × 80,408.40
  4. Step 4: Simplify right side
    144,058.16x = 15,986,013,302.02
  5. Step 5: Solve for x
    x = 15,986,013,302.02/144,058.16
  6. Step 6: Final answer
    x = 110,969.16

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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.