Home / 145,111.80-217,667.70-100,825.05

Finding the Fourth Proportional to 145,111.80, 217,667.70 and 100,825.05

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Solution

The fourth proportional to 145,111.80, 217,667.70 and 100,825.05 is: 151,237.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,111.80 : 217,667.70 = 100,825.05 : x
  2. Step 2: Convert to fraction form
    145,111.80/217,667.70 = 100,825.05/x
  3. Step 3: Cross multiply
    145,111.80x = 217,667.70 × 100,825.05
  4. Step 4: Simplify right side
    145,111.80x = 21,946,356,735.89
  5. Step 5: Solve for x
    x = 21,946,356,735.89/145,111.80
  6. Step 6: Final answer
    x = 151,237.58

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1.5x scale

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.