Home / 142,401.08-213,616.20-53,729.16

Finding the Fourth Proportional to 142,401.08, 213,616.20 and 53,729.16

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Solution

The fourth proportional to 142,401.08, 213,616.20 and 53,729.16 is: 80,599.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,401.08 : 213,616.20 = 53,729.16 : x
  2. Step 2: Convert to fraction form
    142,401.08/213,616.20 = 53,729.16/x
  3. Step 3: Cross multiply
    142,401.08x = 213,616.20 × 53,729.16
  4. Step 4: Simplify right side
    142,401.08x = 11,477,418,988.39
  5. Step 5: Solve for x
    x = 11,477,418,988.39/142,401.08
  6. Step 6: Final answer
    x = 80,599.24

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.