Home / 103,639.70-155,459.55-37,085.05

Finding the Fourth Proportional to 103,639.70, 155,459.55 and 37,085.05

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Solution

The fourth proportional to 103,639.70, 155,459.55 and 37,085.05 is: 55,627.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,639.70 : 155,459.55 = 37,085.05 : x
  2. Step 2: Convert to fraction form
    103,639.70/155,459.55 = 37,085.05/x
  3. Step 3: Cross multiply
    103,639.70x = 155,459.55 × 37,085.05
  4. Step 4: Simplify right side
    103,639.70x = 5,765,225,184.73
  5. Step 5: Solve for x
    x = 5,765,225,184.73/103,639.70
  6. Step 6: Final answer
    x = 55,627.58

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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.