Home / 281,139.40-421,709.10-94,150.90

Finding the Fourth Proportional to 281,139.40, 421,709.10 and 94,150.90

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Solution

The fourth proportional to 281,139.40, 421,709.10 and 94,150.90 is: 141,226.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,139.40 : 421,709.10 = 94,150.90 : x
  2. Step 2: Convert to fraction form
    281,139.40/421,709.10 = 94,150.90/x
  3. Step 3: Cross multiply
    281,139.40x = 421,709.10 × 94,150.90
  4. Step 4: Simplify right side
    281,139.40x = 39,704,291,303.19
  5. Step 5: Solve for x
    x = 39,704,291,303.19/281,139.40
  6. Step 6: Final answer
    x = 141,226.35

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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.