Home / 201,827.80-302,741.70-127,178.20

Finding the Fourth Proportional to 201,827.80, 302,741.70 and 127,178.20

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Solution

The fourth proportional to 201,827.80, 302,741.70 and 127,178.20 is: 190,767.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,827.80 : 302,741.70 = 127,178.20 : x
  2. Step 2: Convert to fraction form
    201,827.80/302,741.70 = 127,178.20/x
  3. Step 3: Cross multiply
    201,827.80x = 302,741.70 × 127,178.20
  4. Step 4: Simplify right side
    201,827.80x = 38,502,144,470.94
  5. Step 5: Solve for x
    x = 38,502,144,470.94/201,827.80
  6. Step 6: Final answer
    x = 190,767.30

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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.