Home / 158,116.56-218,206.26-90,143.64

Finding the Fourth Proportional to 158,116.56, 218,206.26 and 90,143.64

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Solution

The fourth proportional to 158,116.56, 218,206.26 and 90,143.64 is: 124,401.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,116.56 : 218,206.26 = 90,143.64 : x
  2. Step 2: Convert to fraction form
    158,116.56/218,206.26 = 90,143.64/x
  3. Step 3: Cross multiply
    158,116.56x = 218,206.26 × 90,143.64
  4. Step 4: Simplify right side
    158,116.56x = 19,669,906,547.19
  5. Step 5: Solve for x
    x = 19,669,906,547.19/158,116.56
  6. Step 6: Final answer
    x = 124,401.31

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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.