Home / 103,669.40-155,388.90-56,955.80

Finding the Fourth Proportional to 103,669.40, 155,388.90 and 56,955.80

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Solution

The fourth proportional to 103,669.40, 155,388.90 and 56,955.80 is: 85,370.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,669.40 : 155,388.90 = 56,955.80 : x
  2. Step 2: Convert to fraction form
    103,669.40/155,388.90 = 56,955.80/x
  3. Step 3: Cross multiply
    103,669.40x = 155,388.90 × 56,955.80
  4. Step 4: Simplify right side
    103,669.40x = 8,850,299,110.62
  5. Step 5: Solve for x
    x = 8,850,299,110.62/103,669.40
  6. Step 6: Final answer
    x = 85,370.41

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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.