Home / 154,645.60-213,513.72-118,771.50

Finding the Fourth Proportional to 154,645.60, 213,513.72 and 118,771.50

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Solution

The fourth proportional to 154,645.60, 213,513.72 and 118,771.50 is: 163,983.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,645.60 : 213,513.72 = 118,771.50 : x
  2. Step 2: Convert to fraction form
    154,645.60/213,513.72 = 118,771.50/x
  3. Step 3: Cross multiply
    154,645.60x = 213,513.72 × 118,771.50
  4. Step 4: Simplify right side
    154,645.60x = 25,359,344,794.98
  5. Step 5: Solve for x
    x = 25,359,344,794.98/154,645.60
  6. Step 6: Final answer
    x = 163,983.62

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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.