Home / 105,637.86-145,799.37-67,409.28

Finding the Fourth Proportional to 105,637.86, 145,799.37 and 67,409.28

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Solution

The fourth proportional to 105,637.86, 145,799.37 and 67,409.28 is: 93,037.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,637.86 : 145,799.37 = 67,409.28 : x
  2. Step 2: Convert to fraction form
    105,637.86/145,799.37 = 67,409.28/x
  3. Step 3: Cross multiply
    105,637.86x = 145,799.37 × 67,409.28
  4. Step 4: Simplify right side
    105,637.86x = 9,828,230,556.15
  5. Step 5: Solve for x
    x = 9,828,230,556.15/105,637.86
  6. Step 6: Final answer
    x = 93,037.01

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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.