Home / 137,525.04-189,800.30-77,112

Finding the Fourth Proportional to 137,525.04, 189,800.30 and 77,112

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Solution

The fourth proportional to 137,525.04, 189,800.30 and 77,112 is: 106,423.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,525.04 : 189,800.30 = 77,112 : x
  2. Step 2: Convert to fraction form
    137,525.04/189,800.30 = 77,112/x
  3. Step 3: Cross multiply
    137,525.04x = 189,800.30 × 77,112
  4. Step 4: Simplify right side
    137,525.04x = 14,635,880,733.60
  5. Step 5: Solve for x
    x = 14,635,880,733.60/137,525.04
  6. Step 6: Final answer
    x = 106,423.39

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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.