Home / 198,641.36-274,184.33-130,710.71

Finding the Fourth Proportional to 198,641.36, 274,184.33 and 130,710.71

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Solution

The fourth proportional to 198,641.36, 274,184.33 and 130,710.71 is: 180,419.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,641.36 : 274,184.33 = 130,710.71 : x
  2. Step 2: Convert to fraction form
    198,641.36/274,184.33 = 130,710.71/x
  3. Step 3: Cross multiply
    198,641.36x = 274,184.33 × 130,710.71
  4. Step 4: Simplify right side
    198,641.36x = 35,838,828,477.08
  5. Step 5: Solve for x
    x = 35,838,828,477.08/198,641.36
  6. Step 6: Final answer
    x = 180,419.77

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.