Home / 208,262.05-312,518.12-89,933.40

Finding the Fourth Proportional to 208,262.05, 312,518.12 and 89,933.40

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Solution

The fourth proportional to 208,262.05, 312,518.12 and 89,933.40 is: 134,954.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,262.05 : 312,518.12 = 89,933.40 : x
  2. Step 2: Convert to fraction form
    208,262.05/312,518.12 = 89,933.40/x
  3. Step 3: Cross multiply
    208,262.05x = 312,518.12 × 89,933.40
  4. Step 4: Simplify right side
    208,262.05x = 28,105,816,643.54
  5. Step 5: Solve for x
    x = 28,105,816,643.54/208,262.05
  6. Step 6: Final answer
    x = 134,954.10

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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.