Home / 209,130.34-313,696.55-51,358.81

Finding the Fourth Proportional to 209,130.34, 313,696.55 and 51,358.81

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Solution

The fourth proportional to 209,130.34, 313,696.55 and 51,358.81 is: 77,038.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,130.34 : 313,696.55 = 51,358.81 : x
  2. Step 2: Convert to fraction form
    209,130.34/313,696.55 = 51,358.81/x
  3. Step 3: Cross multiply
    209,130.34x = 313,696.55 × 51,358.81
  4. Step 4: Simplify right side
    209,130.34x = 16,111,080,853.26
  5. Step 5: Solve for x
    x = 16,111,080,853.26/209,130.34
  6. Step 6: Final answer
    x = 77,038.47

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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.