Home / 154,091.16-212,503.50-118,282.68

Finding the Fourth Proportional to 154,091.16, 212,503.50 and 118,282.68

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Solution

The fourth proportional to 154,091.16, 212,503.50 and 118,282.68 is: 163,120.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,091.16 : 212,503.50 = 118,282.68 : x
  2. Step 2: Convert to fraction form
    154,091.16/212,503.50 = 118,282.68/x
  3. Step 3: Cross multiply
    154,091.16x = 212,503.50 × 118,282.68
  4. Step 4: Simplify right side
    154,091.16x = 25,135,483,489.38
  5. Step 5: Solve for x
    x = 25,135,483,489.38/154,091.16
  6. Step 6: Final answer
    x = 163,120.87

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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.