Home / 103,863.51-155,728.68-43,875.75

Finding the Fourth Proportional to 103,863.51, 155,728.68 and 43,875.75

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Solution

The fourth proportional to 103,863.51, 155,728.68 and 43,875.75 is: 65,785.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,863.51 : 155,728.68 = 43,875.75 : x
  2. Step 2: Convert to fraction form
    103,863.51/155,728.68 = 43,875.75/x
  3. Step 3: Cross multiply
    103,863.51x = 155,728.68 × 43,875.75
  4. Step 4: Simplify right side
    103,863.51x = 6,832,712,631.51
  5. Step 5: Solve for x
    x = 6,832,712,631.51/103,863.51
  6. Step 6: Final answer
    x = 65,785.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.