Home / 143,090.04-214,639.64-71,973.86

Finding the Fourth Proportional to 143,090.04, 214,639.64 and 71,973.86

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Solution

The fourth proportional to 143,090.04, 214,639.64 and 71,973.86 is: 107,963.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,090.04 : 214,639.64 = 71,973.86 : x
  2. Step 2: Convert to fraction form
    143,090.04/214,639.64 = 71,973.86/x
  3. Step 3: Cross multiply
    143,090.04x = 214,639.64 × 71,973.86
  4. Step 4: Simplify right side
    143,090.04x = 15,448,441,966.74
  5. Step 5: Solve for x
    x = 15,448,441,966.74/143,090.04
  6. Step 6: Final answer
    x = 107,963.08

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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.