Home / 154,679.16-213,470.98-90,144.84

Finding the Fourth Proportional to 154,679.16, 213,470.98 and 90,144.84

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Solution

The fourth proportional to 154,679.16, 213,470.98 and 90,144.84 is: 124,407.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,679.16 : 213,470.98 = 90,144.84 : x
  2. Step 2: Convert to fraction form
    154,679.16/213,470.98 = 90,144.84/x
  3. Step 3: Cross multiply
    154,679.16x = 213,470.98 × 90,144.84
  4. Step 4: Simplify right side
    154,679.16x = 19,243,307,336.74
  5. Step 5: Solve for x
    x = 19,243,307,336.74/154,679.16
  6. Step 6: Final answer
    x = 124,407.89

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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.