Home / 190,848.90-286,382.70-72,605.10

Finding the Fourth Proportional to 190,848.90, 286,382.70 and 72,605.10

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Solution

The fourth proportional to 190,848.90, 286,382.70 and 72,605.10 is: 108,949.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,848.90 : 286,382.70 = 72,605.10 : x
  2. Step 2: Convert to fraction form
    190,848.90/286,382.70 = 72,605.10/x
  3. Step 3: Cross multiply
    190,848.90x = 286,382.70 × 72,605.10
  4. Step 4: Simplify right side
    190,848.90x = 20,792,844,571.77
  5. Step 5: Solve for x
    x = 20,792,844,571.77/190,848.90
  6. Step 6: Final answer
    x = 108,949.25

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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.