Home / 131,636.32-181,600.41-77,160.87

Finding the Fourth Proportional to 131,636.32, 181,600.41 and 77,160.87

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Solution

The fourth proportional to 131,636.32, 181,600.41 and 77,160.87 is: 106,448.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,636.32 : 181,600.41 = 77,160.87 : x
  2. Step 2: Convert to fraction form
    131,636.32/181,600.41 = 77,160.87/x
  3. Step 3: Cross multiply
    131,636.32x = 181,600.41 × 77,160.87
  4. Step 4: Simplify right side
    131,636.32x = 14,012,445,627.96
  5. Step 5: Solve for x
    x = 14,012,445,627.96/131,636.32
  6. Step 6: Final answer
    x = 106,448.17

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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.