Home / 115,788.07-159,817.58-65,516.23

Finding the Fourth Proportional to 115,788.07, 159,817.58 and 65,516.23

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Solution

The fourth proportional to 115,788.07, 159,817.58 and 65,516.23 is: 90,429.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,788.07 : 159,817.58 = 65,516.23 : x
  2. Step 2: Convert to fraction form
    115,788.07/159,817.58 = 65,516.23/x
  3. Step 3: Cross multiply
    115,788.07x = 159,817.58 × 65,516.23
  4. Step 4: Simplify right side
    115,788.07x = 10,470,645,329.32
  5. Step 5: Solve for x
    x = 10,470,645,329.32/115,788.07
  6. Step 6: Final answer
    x = 90,429.40

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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.