Home / 135,013.94-186,320.80-74,583.32

Finding the Fourth Proportional to 135,013.94, 186,320.80 and 74,583.32

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Solution

The fourth proportional to 135,013.94, 186,320.80 and 74,583.32 is: 102,925.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,013.94 : 186,320.80 = 74,583.32 : x
  2. Step 2: Convert to fraction form
    135,013.94/186,320.80 = 74,583.32/x
  3. Step 3: Cross multiply
    135,013.94x = 186,320.80 × 74,583.32
  4. Step 4: Simplify right side
    135,013.94x = 13,896,423,010.34
  5. Step 5: Solve for x
    x = 13,896,423,010.34/135,013.94
  6. Step 6: Final answer
    x = 102,925.84

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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.