Home / 145,266.45-217,965.39-74,152.36

Finding the Fourth Proportional to 145,266.45, 217,965.39 and 74,152.36

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Solution

The fourth proportional to 145,266.45, 217,965.39 and 74,152.36 is: 111,262.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,266.45 : 217,965.39 = 74,152.36 : x
  2. Step 2: Convert to fraction form
    145,266.45/217,965.39 = 74,152.36/x
  3. Step 3: Cross multiply
    145,266.45x = 217,965.39 × 74,152.36
  4. Step 4: Simplify right side
    145,266.45x = 16,162,648,066.82
  5. Step 5: Solve for x
    x = 16,162,648,066.82/145,266.45
  6. Step 6: Final answer
    x = 111,262.08

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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.