Home / 139,865.36-209,815.32-46,432.40

Finding the Fourth Proportional to 139,865.36, 209,815.32 and 46,432.40

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Solution

The fourth proportional to 139,865.36, 209,815.32 and 46,432.40 is: 69,654.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,865.36 : 209,815.32 = 46,432.40 : x
  2. Step 2: Convert to fraction form
    139,865.36/209,815.32 = 46,432.40/x
  3. Step 3: Cross multiply
    139,865.36x = 209,815.32 × 46,432.40
  4. Step 4: Simplify right side
    139,865.36x = 9,742,228,864.37
  5. Step 5: Solve for x
    x = 9,742,228,864.37/139,865.36
  6. Step 6: Final answer
    x = 69,654.34

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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.