Home / 180,140.45-248,428.55-108,395.91

Finding the Fourth Proportional to 180,140.45, 248,428.55 and 108,395.91

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Solution

The fourth proportional to 180,140.45, 248,428.55 and 108,395.91 is: 149,486.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,140.45 : 248,428.55 = 108,395.91 : x
  2. Step 2: Convert to fraction form
    180,140.45/248,428.55 = 108,395.91/x
  3. Step 3: Cross multiply
    180,140.45x = 248,428.55 × 108,395.91
  4. Step 4: Simplify right side
    180,140.45x = 26,928,639,018.22
  5. Step 5: Solve for x
    x = 26,928,639,018.22/180,140.45
  6. Step 6: Final answer
    x = 149,486.91

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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.