Home / 118,936.80-164,124.63-65,210.67

Finding the Fourth Proportional to 118,936.80, 164,124.63 and 65,210.67

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Solution

The fourth proportional to 118,936.80, 164,124.63 and 65,210.67 is: 89,986.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,936.80 : 164,124.63 = 65,210.67 : x
  2. Step 2: Convert to fraction form
    118,936.80/164,124.63 = 65,210.67/x
  3. Step 3: Cross multiply
    118,936.80x = 164,124.63 × 65,210.67
  4. Step 4: Simplify right side
    118,936.80x = 10,702,677,085.80
  5. Step 5: Solve for x
    x = 10,702,677,085.80/118,936.80
  6. Step 6: Final answer
    x = 89,986.25

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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.