Home / 147,645.37-203,686.71-90,287.19

Finding the Fourth Proportional to 147,645.37, 203,686.71 and 90,287.19

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Solution

The fourth proportional to 147,645.37, 203,686.71 and 90,287.19 is: 124,557.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,645.37 : 203,686.71 = 90,287.19 : x
  2. Step 2: Convert to fraction form
    147,645.37/203,686.71 = 90,287.19/x
  3. Step 3: Cross multiply
    147,645.37x = 203,686.71 × 90,287.19
  4. Step 4: Simplify right side
    147,645.37x = 18,390,300,686.24
  5. Step 5: Solve for x
    x = 18,390,300,686.24/147,645.37
  6. Step 6: Final answer
    x = 124,557.25

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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.