Home / 103,640.07-155,110.18-64,230.33

Finding the Fourth Proportional to 103,640.07, 155,110.18 and 64,230.33

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Solution

The fourth proportional to 103,640.07, 155,110.18 and 64,230.33 is: 96,128.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,640.07 : 155,110.18 = 64,230.33 : x
  2. Step 2: Convert to fraction form
    103,640.07/155,110.18 = 64,230.33/x
  3. Step 3: Cross multiply
    103,640.07x = 155,110.18 × 64,230.33
  4. Step 4: Simplify right side
    103,640.07x = 9,962,778,047.76
  5. Step 5: Solve for x
    x = 9,962,778,047.76/103,640.07
  6. Step 6: Final answer
    x = 96,128.63

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1.5x scale

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.