Home / 152,868.15-210,936.11-84,885.95

Finding the Fourth Proportional to 152,868.15, 210,936.11 and 84,885.95

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Solution

The fourth proportional to 152,868.15, 210,936.11 and 84,885.95 is: 117,130.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,868.15 : 210,936.11 = 84,885.95 : x
  2. Step 2: Convert to fraction form
    152,868.15/210,936.11 = 84,885.95/x
  3. Step 3: Cross multiply
    152,868.15x = 210,936.11 × 84,885.95
  4. Step 4: Simplify right side
    152,868.15x = 17,905,512,086.65
  5. Step 5: Solve for x
    x = 17,905,512,086.65/152,868.15
  6. Step 6: Final answer
    x = 117,130.43

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.