Home / 100,145,726.46-149,959,878.98-69,117,128.15

Finding the Fourth Proportional to 100,145,726.46, 149,959,878.98 and 69,117,128.15

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Solution

The fourth proportional to 100,145,726.46, 149,959,878.98 and 69,117,128.15 is: 103,497,139.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,145,726.46 : 149,959,878.98 = 69,117,128.15 : x
  2. Step 2: Convert to fraction form
    100,145,726.46/149,959,878.98 = 69,117,128.15/x
  3. Step 3: Cross multiply
    100,145,726.46x = 149,959,878.98 × 69,117,128.15
  4. Step 4: Simplify right side
    100,145,726.46x = 10,364,796,171,723,766
  5. Step 5: Solve for x
    x = 10,364,796,171,723,766/100,145,726.46
  6. Step 6: Final answer
    x = 103,497,139.00

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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.