Home / 145,185.35-217,898.10-74,160.50

Finding the Fourth Proportional to 145,185.35, 217,898.10 and 74,160.50

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Solution

The fourth proportional to 145,185.35, 217,898.10 and 74,160.50 is: 111,302.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,185.35 : 217,898.10 = 74,160.50 : x
  2. Step 2: Convert to fraction form
    145,185.35/217,898.10 = 74,160.50/x
  3. Step 3: Cross multiply
    145,185.35x = 217,898.10 × 74,160.50
  4. Step 4: Simplify right side
    145,185.35x = 16,159,430,955.56
  5. Step 5: Solve for x
    x = 16,159,430,955.56/145,185.35
  6. Step 6: Final answer
    x = 111,302.08

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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.