Home / 142,720.04-214,110.12-53,971.58

Finding the Fourth Proportional to 142,720.04, 214,110.12 and 53,971.58

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Solution

The fourth proportional to 142,720.04, 214,110.12 and 53,971.58 is: 80,968.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,720.04 : 214,110.12 = 53,971.58 : x
  2. Step 2: Convert to fraction form
    142,720.04/214,110.12 = 53,971.58/x
  3. Step 3: Cross multiply
    142,720.04x = 214,110.12 × 53,971.58
  4. Step 4: Simplify right side
    142,720.04x = 11,555,861,470.39
  5. Step 5: Solve for x
    x = 11,555,861,470.39/142,720.04
  6. Step 6: Final answer
    x = 80,968.74

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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.