Home / 142,058.80-196,114.86-103,775.38

Finding the Fourth Proportional to 142,058.80, 196,114.86 and 103,775.38

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Solution

The fourth proportional to 142,058.80, 196,114.86 and 103,775.38 is: 143,263.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,058.80 : 196,114.86 = 103,775.38 : x
  2. Step 2: Convert to fraction form
    142,058.80/196,114.86 = 103,775.38/x
  3. Step 3: Cross multiply
    142,058.80x = 196,114.86 × 103,775.38
  4. Step 4: Simplify right side
    142,058.80x = 20,351,894,120.15
  5. Step 5: Solve for x
    x = 20,351,894,120.15/142,058.80
  6. Step 6: Final answer
    x = 143,263.87

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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.