Home / 268,866.19-403,384.04-126,705.72

Finding the Fourth Proportional to 268,866.19, 403,384.04 and 126,705.72

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Solution

The fourth proportional to 268,866.19, 403,384.04 and 126,705.72 is: 190,098.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,866.19 : 403,384.04 = 126,705.72 : x
  2. Step 2: Convert to fraction form
    268,866.19/403,384.04 = 126,705.72/x
  3. Step 3: Cross multiply
    268,866.19x = 403,384.04 × 126,705.72
  4. Step 4: Simplify right side
    268,866.19x = 51,111,065,541.47
  5. Step 5: Solve for x
    x = 51,111,065,541.47/268,866.19
  6. Step 6: Final answer
    x = 190,098.52

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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.