Home / 158,382.03-218,513.30-90,350.17

Finding the Fourth Proportional to 158,382.03, 218,513.30 and 90,350.17

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Solution

The fourth proportional to 158,382.03, 218,513.30 and 90,350.17 is: 124,652.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,382.03 : 218,513.30 = 90,350.17 : x
  2. Step 2: Convert to fraction form
    158,382.03/218,513.30 = 90,350.17/x
  3. Step 3: Cross multiply
    158,382.03x = 218,513.30 × 90,350.17
  4. Step 4: Simplify right side
    158,382.03x = 19,742,712,804.23
  5. Step 5: Solve for x
    x = 19,742,712,804.23/158,382.03
  6. Step 6: Final answer
    x = 124,652.48

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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.