Home / 103,681.49-155,521.20-47,505.66

Finding the Fourth Proportional to 103,681.49, 155,521.20 and 47,505.66

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Solution

The fourth proportional to 103,681.49, 155,521.20 and 47,505.66 is: 71,258.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,681.49 : 155,521.20 = 47,505.66 : x
  2. Step 2: Convert to fraction form
    103,681.49/155,521.20 = 47,505.66/x
  3. Step 3: Cross multiply
    103,681.49x = 155,521.20 × 47,505.66
  4. Step 4: Simplify right side
    103,681.49x = 7,388,137,249.99
  5. Step 5: Solve for x
    x = 7,388,137,249.99/103,681.49
  6. Step 6: Final answer
    x = 71,258.02

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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.