Home / 143,607.84-215,408.68-38,426.80

Finding the Fourth Proportional to 143,607.84, 215,408.68 and 38,426.80

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Solution

The fourth proportional to 143,607.84, 215,408.68 and 38,426.80 is: 57,639.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,607.84 : 215,408.68 = 38,426.80 : x
  2. Step 2: Convert to fraction form
    143,607.84/215,408.68 = 38,426.80/x
  3. Step 3: Cross multiply
    143,607.84x = 215,408.68 × 38,426.80
  4. Step 4: Simplify right side
    143,607.84x = 8,277,466,264.62
  5. Step 5: Solve for x
    x = 8,277,466,264.62/143,607.84
  6. Step 6: Final answer
    x = 57,639.38

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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.