Home / 158,246.89-218,364.45-90,258.73

Finding the Fourth Proportional to 158,246.89, 218,364.45 and 90,258.73

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Solution

The fourth proportional to 158,246.89, 218,364.45 and 90,258.73 is: 124,547.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,246.89 : 218,364.45 = 90,258.73 : x
  2. Step 2: Convert to fraction form
    158,246.89/218,364.45 = 90,258.73/x
  3. Step 3: Cross multiply
    158,246.89x = 218,364.45 × 90,258.73
  4. Step 4: Simplify right side
    158,246.89x = 19,709,297,934.15
  5. Step 5: Solve for x
    x = 19,709,297,934.15/158,246.89
  6. Step 6: Final answer
    x = 124,547.77

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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.