Home / 154,182.53-212,693.95-103,197.40

Finding the Fourth Proportional to 154,182.53, 212,693.95 and 103,197.40

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Solution

The fourth proportional to 154,182.53, 212,693.95 and 103,197.40 is: 142,360.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,182.53 : 212,693.95 = 103,197.40 : x
  2. Step 2: Convert to fraction form
    154,182.53/212,693.95 = 103,197.40/x
  3. Step 3: Cross multiply
    154,182.53x = 212,693.95 × 103,197.40
  4. Step 4: Simplify right side
    154,182.53x = 21,949,462,635.73
  5. Step 5: Solve for x
    x = 21,949,462,635.73/154,182.53
  6. Step 6: Final answer
    x = 142,360.24

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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.