Home / 142,968.40-214,454.14-43,129.45

Finding the Fourth Proportional to 142,968.40, 214,454.14 and 43,129.45

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Solution

The fourth proportional to 142,968.40, 214,454.14 and 43,129.45 is: 64,694.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,968.40 : 214,454.14 = 43,129.45 : x
  2. Step 2: Convert to fraction form
    142,968.40/214,454.14 = 43,129.45/x
  3. Step 3: Cross multiply
    142,968.40x = 214,454.14 × 43,129.45
  4. Step 4: Simplify right side
    142,968.40x = 9,249,289,108.42
  5. Step 5: Solve for x
    x = 9,249,289,108.42/142,968.40
  6. Step 6: Final answer
    x = 64,694.64

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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.