Home / 145,141.06-217,719.69-45,315.04

Finding the Fourth Proportional to 145,141.06, 217,719.69 and 45,315.04

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Solution

The fourth proportional to 145,141.06, 217,719.69 and 45,315.04 is: 67,975.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,141.06 : 217,719.69 = 45,315.04 : x
  2. Step 2: Convert to fraction form
    145,141.06/217,719.69 = 45,315.04/x
  3. Step 3: Cross multiply
    145,141.06x = 217,719.69 × 45,315.04
  4. Step 4: Simplify right side
    145,141.06x = 9,865,976,461.14
  5. Step 5: Solve for x
    x = 9,865,976,461.14/145,141.06
  6. Step 6: Final answer
    x = 67,975.09

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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.