Home / 103,931.80-155,667.30-41,570.20

Finding the Fourth Proportional to 103,931.80, 155,667.30 and 41,570.20

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Solution

The fourth proportional to 103,931.80, 155,667.30 and 41,570.20 is: 62,263.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,931.80 : 155,667.30 = 41,570.20 : x
  2. Step 2: Convert to fraction form
    103,931.80/155,667.30 = 41,570.20/x
  3. Step 3: Cross multiply
    103,931.80x = 155,667.30 × 41,570.20
  4. Step 4: Simplify right side
    103,931.80x = 6,471,120,794.46
  5. Step 5: Solve for x
    x = 6,471,120,794.46/103,931.80
  6. Step 6: Final answer
    x = 62,263.15

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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.