Home / 139,245.32-192,162.58-75,587.16

Finding the Fourth Proportional to 139,245.32, 192,162.58 and 75,587.16

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Solution

The fourth proportional to 139,245.32, 192,162.58 and 75,587.16 is: 104,312.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,245.32 : 192,162.58 = 75,587.16 : x
  2. Step 2: Convert to fraction form
    139,245.32/192,162.58 = 75,587.16/x
  3. Step 3: Cross multiply
    139,245.32x = 192,162.58 × 75,587.16
  4. Step 4: Simplify right side
    139,245.32x = 14,525,023,680.47
  5. Step 5: Solve for x
    x = 14,525,023,680.47/139,245.32
  6. Step 6: Final answer
    x = 104,312.47

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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.