Home / 145,412.34-200,768.52-111,360.78

Finding the Fourth Proportional to 145,412.34, 200,768.52 and 111,360.78

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Solution

The fourth proportional to 145,412.34, 200,768.52 and 111,360.78 is: 153,754.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,412.34 : 200,768.52 = 111,360.78 : x
  2. Step 2: Convert to fraction form
    145,412.34/200,768.52 = 111,360.78/x
  3. Step 3: Cross multiply
    145,412.34x = 200,768.52 × 111,360.78
  4. Step 4: Simplify right side
    145,412.34x = 22,357,738,986.65
  5. Step 5: Solve for x
    x = 22,357,738,986.65/145,412.34
  6. Step 6: Final answer
    x = 153,754.07

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.