Home / 135,302.37-186,718.95-74,872.86

Finding the Fourth Proportional to 135,302.37, 186,718.95 and 74,872.86

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Solution

The fourth proportional to 135,302.37, 186,718.95 and 74,872.86 is: 103,325.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,302.37 : 186,718.95 = 74,872.86 : x
  2. Step 2: Convert to fraction form
    135,302.37/186,718.95 = 74,872.86/x
  3. Step 3: Cross multiply
    135,302.37x = 186,718.95 × 74,872.86
  4. Step 4: Simplify right side
    135,302.37x = 13,980,181,802.70
  5. Step 5: Solve for x
    x = 13,980,181,802.70/135,302.37
  6. Step 6: Final answer
    x = 103,325.48

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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.