Home / 145,118.94-217,703.93-66,241.14

Finding the Fourth Proportional to 145,118.94, 217,703.93 and 66,241.14

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Solution

The fourth proportional to 145,118.94, 217,703.93 and 66,241.14 is: 99,373.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,118.94 : 217,703.93 = 66,241.14 : x
  2. Step 2: Convert to fraction form
    145,118.94/217,703.93 = 66,241.14/x
  3. Step 3: Cross multiply
    145,118.94x = 217,703.93 × 66,241.14
  4. Step 4: Simplify right side
    145,118.94x = 14,420,956,174.47
  5. Step 5: Solve for x
    x = 14,420,956,174.47/145,118.94
  6. Step 6: Final answer
    x = 99,373.36

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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.