Home / 135,506.18-186,996.10-75,075.61

Finding the Fourth Proportional to 135,506.18, 186,996.10 and 75,075.61

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Solution

The fourth proportional to 135,506.18, 186,996.10 and 75,075.61 is: 103,602.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,506.18 : 186,996.10 = 75,075.61 : x
  2. Step 2: Convert to fraction form
    135,506.18/186,996.10 = 75,075.61/x
  3. Step 3: Cross multiply
    135,506.18x = 186,996.10 × 75,075.61
  4. Step 4: Simplify right side
    135,506.18x = 14,038,846,322.48
  5. Step 5: Solve for x
    x = 14,038,846,322.48/135,506.18
  6. Step 6: Final answer
    x = 103,602.99

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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.