Home / 131,616,720.11-181,820,265-105,120,286.32

Finding the Fourth Proportional to 131,616,720.11, 181,820,265 and 105,120,286.32

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Solution

The fourth proportional to 131,616,720.11, 181,820,265 and 105,120,286.32 is: 145,217,099.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,616,720.11 : 181,820,265 = 105,120,286.32 : x
  2. Step 2: Convert to fraction form
    131,616,720.11/181,820,265 = 105,120,286.32/x
  3. Step 3: Cross multiply
    131,616,720.11x = 181,820,265 × 105,120,286.32
  4. Step 4: Simplify right side
    131,616,720.11x = 19,112,998,315,578,272
  5. Step 5: Solve for x
    x = 19,112,998,315,578,272/131,616,720.11
  6. Step 6: Final answer
    x = 145,217,099.32

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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.