Home / 140,128.76-210,147.06-46,609.40

Finding the Fourth Proportional to 140,128.76, 210,147.06 and 46,609.40

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Solution

The fourth proportional to 140,128.76, 210,147.06 and 46,609.40 is: 69,898.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,128.76 : 210,147.06 = 46,609.40 : x
  2. Step 2: Convert to fraction form
    140,128.76/210,147.06 = 46,609.40/x
  3. Step 3: Cross multiply
    140,128.76x = 210,147.06 × 46,609.40
  4. Step 4: Simplify right side
    140,128.76x = 9,794,828,378.36
  5. Step 5: Solve for x
    x = 9,794,828,378.36/140,128.76
  6. Step 6: Final answer
    x = 69,898.77

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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.