Home / 209,688.12-289,374.78-114,199.98

Finding the Fourth Proportional to 209,688.12, 289,374.78 and 114,199.98

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Solution

The fourth proportional to 209,688.12, 289,374.78 and 114,199.98 is: 157,598.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,688.12 : 289,374.78 = 114,199.98 : x
  2. Step 2: Convert to fraction form
    209,688.12/289,374.78 = 114,199.98/x
  3. Step 3: Cross multiply
    209,688.12x = 289,374.78 × 114,199.98
  4. Step 4: Simplify right side
    209,688.12x = 33,046,594,088.50
  5. Step 5: Solve for x
    x = 33,046,594,088.50/209,688.12
  6. Step 6: Final answer
    x = 157,598.79

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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.