Home / 135,681.49-187,251.64-75,271.58

Finding the Fourth Proportional to 135,681.49, 187,251.64 and 75,271.58

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Solution

The fourth proportional to 135,681.49, 187,251.64 and 75,271.58 is: 103,880.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,681.49 : 187,251.64 = 75,271.58 : x
  2. Step 2: Convert to fraction form
    135,681.49/187,251.64 = 75,271.58/x
  3. Step 3: Cross multiply
    135,681.49x = 187,251.64 × 75,271.58
  4. Step 4: Simplify right side
    135,681.49x = 14,094,725,675.95
  5. Step 5: Solve for x
    x = 14,094,725,675.95/135,681.49
  6. Step 6: Final answer
    x = 103,880.98

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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.