Home / 103,667.19-155,458.94-40,478.28

Finding the Fourth Proportional to 103,667.19, 155,458.94 and 40,478.28

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Solution

The fourth proportional to 103,667.19, 155,458.94 and 40,478.28 is: 60,701.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,667.19 : 155,458.94 = 40,478.28 : x
  2. Step 2: Convert to fraction form
    103,667.19/155,458.94 = 40,478.28/x
  3. Step 3: Cross multiply
    103,667.19x = 155,458.94 × 40,478.28
  4. Step 4: Simplify right side
    103,667.19x = 6,292,710,299.43
  5. Step 5: Solve for x
    x = 6,292,710,299.43/103,667.19
  6. Step 6: Final answer
    x = 60,701.08

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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.