Home / 201,975.10-302,617.05-128,016.70

Finding the Fourth Proportional to 201,975.10, 302,617.05 and 128,016.70

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Solution

The fourth proportional to 201,975.10, 302,617.05 and 128,016.70 is: 191,806.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,975.10 : 302,617.05 = 128,016.70 : x
  2. Step 2: Convert to fraction form
    201,975.10/302,617.05 = 128,016.70/x
  3. Step 3: Cross multiply
    201,975.10x = 302,617.05 × 128,016.70
  4. Step 4: Simplify right side
    201,975.10x = 38,740,036,104.74
  5. Step 5: Solve for x
    x = 38,740,036,104.74/201,975.10
  6. Step 6: Final answer
    x = 191,806.00

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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.