Home / 147,397.77-203,384.40-83,712.33

Finding the Fourth Proportional to 147,397.77, 203,384.40 and 83,712.33

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Solution

The fourth proportional to 147,397.77, 203,384.40 and 83,712.33 is: 115,509.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,397.77 : 203,384.40 = 83,712.33 : x
  2. Step 2: Convert to fraction form
    147,397.77/203,384.40 = 83,712.33/x
  3. Step 3: Cross multiply
    147,397.77x = 203,384.40 × 83,712.33
  4. Step 4: Simplify right side
    147,397.77x = 17,025,782,009.65
  5. Step 5: Solve for x
    x = 17,025,782,009.65/147,397.77
  6. Step 6: Final answer
    x = 115,509.09

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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.