Home / 103,681.20-155,521.80-41,396.40

Finding the Fourth Proportional to 103,681.20, 155,521.80 and 41,396.40

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Solution

The fourth proportional to 103,681.20, 155,521.80 and 41,396.40 is: 62,094.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,681.20 : 155,521.80 = 41,396.40 : x
  2. Step 2: Convert to fraction form
    103,681.20/155,521.80 = 41,396.40/x
  3. Step 3: Cross multiply
    103,681.20x = 155,521.80 × 41,396.40
  4. Step 4: Simplify right side
    103,681.20x = 6,438,042,641.52
  5. Step 5: Solve for x
    x = 6,438,042,641.52/103,681.20
  6. Step 6: Final answer
    x = 62,094.60

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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.