Home / 154,176.95-212,799.74-100,368.24

Finding the Fourth Proportional to 154,176.95, 212,799.74 and 100,368.24

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Solution

The fourth proportional to 154,176.95, 212,799.74 and 100,368.24 is: 138,531.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,176.95 : 212,799.74 = 100,368.24 : x
  2. Step 2: Convert to fraction form
    154,176.95/212,799.74 = 100,368.24/x
  3. Step 3: Cross multiply
    154,176.95x = 212,799.74 × 100,368.24
  4. Step 4: Simplify right side
    154,176.95x = 21,358,334,874.42
  5. Step 5: Solve for x
    x = 21,358,334,874.42/154,176.95
  6. Step 6: Final answer
    x = 138,531.31

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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.