Home / 154,103.16-212,520.04-118,294.68

Finding the Fourth Proportional to 154,103.16, 212,520.04 and 118,294.68

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Solution

The fourth proportional to 154,103.16, 212,520.04 and 118,294.68 is: 163,137.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,103.16 : 212,520.04 = 118,294.68 : x
  2. Step 2: Convert to fraction form
    154,103.16/212,520.04 = 118,294.68/x
  3. Step 3: Cross multiply
    154,103.16x = 212,520.04 × 118,294.68
  4. Step 4: Simplify right side
    154,103.16x = 25,139,990,125.39
  5. Step 5: Solve for x
    x = 25,139,990,125.39/154,103.16
  6. Step 6: Final answer
    x = 163,137.41

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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.