Home / 147,392.36-203,343.72-90,705.32

Finding the Fourth Proportional to 147,392.36, 203,343.72 and 90,705.32

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Solution

The fourth proportional to 147,392.36, 203,343.72 and 90,705.32 is: 125,137.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,392.36 : 203,343.72 = 90,705.32 : x
  2. Step 2: Convert to fraction form
    147,392.36/203,343.72 = 90,705.32/x
  3. Step 3: Cross multiply
    147,392.36x = 203,343.72 × 90,705.32
  4. Step 4: Simplify right side
    147,392.36x = 18,444,357,192.59
  5. Step 5: Solve for x
    x = 18,444,357,192.59/147,392.36
  6. Step 6: Final answer
    x = 125,137.81

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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.