Home / 142,285.56-213,551.04-79,168.74

Finding the Fourth Proportional to 142,285.56, 213,551.04 and 79,168.74

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Solution

The fourth proportional to 142,285.56, 213,551.04 and 79,168.74 is: 118,821.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,285.56 : 213,551.04 = 79,168.74 : x
  2. Step 2: Convert to fraction form
    142,285.56/213,551.04 = 79,168.74/x
  3. Step 3: Cross multiply
    142,285.56x = 213,551.04 × 79,168.74
  4. Step 4: Simplify right side
    142,285.56x = 16,906,566,762.49
  5. Step 5: Solve for x
    x = 16,906,566,762.49/142,285.56
  6. Step 6: Final answer
    x = 118,821.38

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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.