Home / 154,965.60-213,954.80-119,090.40

Finding the Fourth Proportional to 154,965.60, 213,954.80 and 119,090.40

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Solution

The fourth proportional to 154,965.60, 213,954.80 and 119,090.40 is: 164,423.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,965.60 : 213,954.80 = 119,090.40 : x
  2. Step 2: Convert to fraction form
    154,965.60/213,954.80 = 119,090.40/x
  3. Step 3: Cross multiply
    154,965.60x = 213,954.80 × 119,090.40
  4. Step 4: Simplify right side
    154,965.60x = 25,479,962,713.92
  5. Step 5: Solve for x
    x = 25,479,962,713.92/154,965.60
  6. Step 6: Final answer
    x = 164,423.35

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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.