Home / 216,577.05-298,955.47-130,539.11

Finding the Fourth Proportional to 216,577.05, 298,955.47 and 130,539.11

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Solution

The fourth proportional to 216,577.05, 298,955.47 and 130,539.11 is: 180,191.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,577.05 : 298,955.47 = 130,539.11 : x
  2. Step 2: Convert to fraction form
    216,577.05/298,955.47 = 130,539.11/x
  3. Step 3: Cross multiply
    216,577.05x = 298,955.47 × 130,539.11
  4. Step 4: Simplify right side
    216,577.05x = 39,025,379,488.65
  5. Step 5: Solve for x
    x = 39,025,379,488.65/216,577.05
  6. Step 6: Final answer
    x = 180,191.67

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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.