Home / 99,438.60-149,028.30-46,124.40

Finding the Fourth Proportional to 99,438.60, 149,028.30 and 46,124.40

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Solution

The fourth proportional to 99,438.60, 149,028.30 and 46,124.40 is: 69,126.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,438.60 : 149,028.30 = 46,124.40 : x
  2. Step 2: Convert to fraction form
    99,438.60/149,028.30 = 46,124.40/x
  3. Step 3: Cross multiply
    99,438.60x = 149,028.30 × 46,124.40
  4. Step 4: Simplify right side
    99,438.60x = 6,873,840,920.52
  5. Step 5: Solve for x
    x = 6,873,840,920.52/99,438.60
  6. Step 6: Final answer
    x = 69,126.49

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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.