Home / 201,852.11-302,780.48-86,431.06

Finding the Fourth Proportional to 201,852.11, 302,780.48 and 86,431.06

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Solution

The fourth proportional to 201,852.11, 302,780.48 and 86,431.06 is: 129,647.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,852.11 : 302,780.48 = 86,431.06 : x
  2. Step 2: Convert to fraction form
    201,852.11/302,780.48 = 86,431.06/x
  3. Step 3: Cross multiply
    201,852.11x = 302,780.48 × 86,431.06
  4. Step 4: Simplify right side
    201,852.11x = 26,169,637,833.71
  5. Step 5: Solve for x
    x = 26,169,637,833.71/201,852.11
  6. Step 6: Final answer
    x = 129,647.58

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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.