Home / 103,570.07-155,358.54-28,690.97

Finding the Fourth Proportional to 103,570.07, 155,358.54 and 28,690.97

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Solution

The fourth proportional to 103,570.07, 155,358.54 and 28,690.97 is: 43,037.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,570.07 : 155,358.54 = 28,690.97 : x
  2. Step 2: Convert to fraction form
    103,570.07/155,358.54 = 28,690.97/x
  3. Step 3: Cross multiply
    103,570.07x = 155,358.54 × 28,690.97
  4. Step 4: Simplify right side
    103,570.07x = 4,457,386,433.59
  5. Step 5: Solve for x
    x = 4,457,386,433.59/103,570.07
  6. Step 6: Final answer
    x = 43,037.40

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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.