Home / 259,138.14-388,473.93-92,809.50

Finding the Fourth Proportional to 259,138.14, 388,473.93 and 92,809.50

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Solution

The fourth proportional to 259,138.14, 388,473.93 and 92,809.50 is: 139,130.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,138.14 : 388,473.93 = 92,809.50 : x
  2. Step 2: Convert to fraction form
    259,138.14/388,473.93 = 92,809.50/x
  3. Step 3: Cross multiply
    259,138.14x = 388,473.93 × 92,809.50
  4. Step 4: Simplify right side
    259,138.14x = 36,054,071,206.34
  5. Step 5: Solve for x
    x = 36,054,071,206.34/259,138.14
  6. Step 6: Final answer
    x = 139,130.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.