Home / 154,630.15-213,390.35-100,883.41

Finding the Fourth Proportional to 154,630.15, 213,390.35 and 100,883.41

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Solution

The fourth proportional to 154,630.15, 213,390.35 and 100,883.41 is: 139,219.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,630.15 : 213,390.35 = 100,883.41 : x
  2. Step 2: Convert to fraction form
    154,630.15/213,390.35 = 100,883.41/x
  3. Step 3: Cross multiply
    154,630.15x = 213,390.35 × 100,883.41
  4. Step 4: Simplify right side
    154,630.15x = 21,527,545,509.51
  5. Step 5: Solve for x
    x = 21,527,545,509.51/154,630.15
  6. Step 6: Final answer
    x = 139,219.59

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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.