Home / 142,971.79-214,459.23-43,132.86

Finding the Fourth Proportional to 142,971.79, 214,459.23 and 43,132.86

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Solution

The fourth proportional to 142,971.79, 214,459.23 and 43,132.86 is: 64,699.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,971.79 : 214,459.23 = 43,132.86 : x
  2. Step 2: Convert to fraction form
    142,971.79/214,459.23 = 43,132.86/x
  3. Step 3: Cross multiply
    142,971.79x = 214,459.23 × 43,132.86
  4. Step 4: Simplify right side
    142,971.79x = 9,250,238,871.00
  5. Step 5: Solve for x
    x = 9,250,238,871.00/142,971.79
  6. Step 6: Final answer
    x = 64,699.75

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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.