Home / 103,852.28-155,667.18-74,180.12

Finding the Fourth Proportional to 103,852.28, 155,667.18 and 74,180.12

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Solution

The fourth proportional to 103,852.28, 155,667.18 and 74,180.12 is: 111,190.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,852.28 : 155,667.18 = 74,180.12 : x
  2. Step 2: Convert to fraction form
    103,852.28/155,667.18 = 74,180.12/x
  3. Step 3: Cross multiply
    103,852.28x = 155,667.18 × 74,180.12
  4. Step 4: Simplify right side
    103,852.28x = 11,547,410,092.46
  5. Step 5: Solve for x
    x = 11,547,410,092.46/103,852.28
  6. Step 6: Final answer
    x = 111,190.72

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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.