Home / 135,916.65-187,558.61-75,490.98

Finding the Fourth Proportional to 135,916.65, 187,558.61 and 75,490.98

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Solution

The fourth proportional to 135,916.65, 187,558.61 and 75,490.98 is: 104,174.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,916.65 : 187,558.61 = 75,490.98 : x
  2. Step 2: Convert to fraction form
    135,916.65/187,558.61 = 75,490.98/x
  3. Step 3: Cross multiply
    135,916.65x = 187,558.61 × 75,490.98
  4. Step 4: Simplify right side
    135,916.65x = 14,158,983,465.07
  5. Step 5: Solve for x
    x = 14,158,983,465.07/135,916.65
  6. Step 6: Final answer
    x = 104,174.02

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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.