Home / 142,970.16-214,456.79-43,131.22

Finding the Fourth Proportional to 142,970.16, 214,456.79 and 43,131.22

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Solution

The fourth proportional to 142,970.16, 214,456.79 and 43,131.22 is: 64,697.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,970.16 : 214,456.79 = 43,131.22 : x
  2. Step 2: Convert to fraction form
    142,970.16/214,456.79 = 43,131.22/x
  3. Step 3: Cross multiply
    142,970.16x = 214,456.79 × 43,131.22
  4. Step 4: Simplify right side
    142,970.16x = 9,249,783,525.38
  5. Step 5: Solve for x
    x = 9,249,783,525.38/142,970.16
  6. Step 6: Final answer
    x = 64,697.30

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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.