Home / 133,315.74-183,980.22-72,885.21

Finding the Fourth Proportional to 133,315.74, 183,980.22 and 72,885.21

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Solution

The fourth proportional to 133,315.74, 183,980.22 and 72,885.21 is: 100,584.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,315.74 : 183,980.22 = 72,885.21 : x
  2. Step 2: Convert to fraction form
    133,315.74/183,980.22 = 72,885.21/x
  3. Step 3: Cross multiply
    133,315.74x = 183,980.22 × 72,885.21
  4. Step 4: Simplify right side
    133,315.74x = 13,409,436,970.55
  5. Step 5: Solve for x
    x = 13,409,436,970.55/133,315.74
  6. Step 6: Final answer
    x = 100,584.05

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1.5x scale

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.