Home / 103,416.58-155,132.73-40,209.55

Finding the Fourth Proportional to 103,416.58, 155,132.73 and 40,209.55

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Solution

The fourth proportional to 103,416.58, 155,132.73 and 40,209.55 is: 60,317.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,416.58 : 155,132.73 = 40,209.55 : x
  2. Step 2: Convert to fraction form
    103,416.58/155,132.73 = 40,209.55/x
  3. Step 3: Cross multiply
    103,416.58x = 155,132.73 × 40,209.55
  4. Step 4: Simplify right side
    103,416.58x = 6,237,816,875.74
  5. Step 5: Solve for x
    x = 6,237,816,875.74/103,416.58
  6. Step 6: Final answer
    x = 60,317.38

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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.