Home / 142,622.48-196,757.20-86,002.40

Finding the Fourth Proportional to 142,622.48, 196,757.20 and 86,002.40

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Solution

The fourth proportional to 142,622.48, 196,757.20 and 86,002.40 is: 118,646.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,622.48 : 196,757.20 = 86,002.40 : x
  2. Step 2: Convert to fraction form
    142,622.48/196,757.20 = 86,002.40/x
  3. Step 3: Cross multiply
    142,622.48x = 196,757.20 × 86,002.40
  4. Step 4: Simplify right side
    142,622.48x = 16,921,591,417.28
  5. Step 5: Solve for x
    x = 16,921,591,417.28/142,622.48
  6. Step 6: Final answer
    x = 118,646.03

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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.