Home / 133,038.84-183,588.30-72,607.80

Finding the Fourth Proportional to 133,038.84, 183,588.30 and 72,607.80

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Solution

The fourth proportional to 133,038.84, 183,588.30 and 72,607.80 is: 100,195.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,038.84 : 183,588.30 = 72,607.80 : x
  2. Step 2: Convert to fraction form
    133,038.84/183,588.30 = 72,607.80/x
  3. Step 3: Cross multiply
    133,038.84x = 183,588.30 × 72,607.80
  4. Step 4: Simplify right side
    133,038.84x = 13,329,942,568.74
  5. Step 5: Solve for x
    x = 13,329,942,568.74/133,038.84
  6. Step 6: Final answer
    x = 100,195.87

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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.