Home / 103,667.06-155,497.71-72,522.74

Finding the Fourth Proportional to 103,667.06, 155,497.71 and 72,522.74

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Solution

The fourth proportional to 103,667.06, 155,497.71 and 72,522.74 is: 108,782.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,667.06 : 155,497.71 = 72,522.74 : x
  2. Step 2: Convert to fraction form
    103,667.06/155,497.71 = 72,522.74/x
  3. Step 3: Cross multiply
    103,667.06x = 155,497.71 × 72,522.74
  4. Step 4: Simplify right side
    103,667.06x = 11,277,119,992.93
  5. Step 5: Solve for x
    x = 11,277,119,992.93/103,667.06
  6. Step 6: Final answer
    x = 108,782.10

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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.