Home / 190,315.90-262,616.79-105,417.10

Finding the Fourth Proportional to 190,315.90, 262,616.79 and 105,417.10

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Solution

The fourth proportional to 190,315.90, 262,616.79 and 105,417.10 is: 145,464.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,315.90 : 262,616.79 = 105,417.10 : x
  2. Step 2: Convert to fraction form
    190,315.90/262,616.79 = 105,417.10/x
  3. Step 3: Cross multiply
    190,315.90x = 262,616.79 × 105,417.10
  4. Step 4: Simplify right side
    190,315.90x = 27,684,300,413.11
  5. Step 5: Solve for x
    x = 27,684,300,413.11/190,315.90
  6. Step 6: Final answer
    x = 145,464.99

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1.5x scale

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.