Home / 190,312.77-262,612.49-105,413.97

Finding the Fourth Proportional to 190,312.77, 262,612.49 and 105,413.97

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Solution

The fourth proportional to 190,312.77, 262,612.49 and 105,413.97 is: 145,460.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,312.77 : 262,612.49 = 105,413.97 : x
  2. Step 2: Convert to fraction form
    190,312.77/262,612.49 = 105,413.97/x
  3. Step 3: Cross multiply
    190,312.77x = 262,612.49 × 105,413.97
  4. Step 4: Simplify right side
    190,312.77x = 27,683,024,615.42
  5. Step 5: Solve for x
    x = 27,683,024,615.42/190,312.77
  6. Step 6: Final answer
    x = 145,460.68

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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.