Home / 158,382.61-218,513.36-90,350.51

Finding the Fourth Proportional to 158,382.61, 218,513.36 and 90,350.51

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Solution

The fourth proportional to 158,382.61, 218,513.36 and 90,350.51 is: 124,652.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,382.61 : 218,513.36 = 90,350.51 : x
  2. Step 2: Convert to fraction form
    158,382.61/218,513.36 = 90,350.51/x
  3. Step 3: Cross multiply
    158,382.61x = 218,513.36 × 90,350.51
  4. Step 4: Simplify right side
    158,382.61x = 19,742,792,651.12
  5. Step 5: Solve for x
    x = 19,742,792,651.12/158,382.61
  6. Step 6: Final answer
    x = 124,652.53

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1.5x scale

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.