Home / 99,015.40-148,523.10-72,443.35

Finding the Fourth Proportional to 99,015.40, 148,523.10 and 72,443.35

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Solution

The fourth proportional to 99,015.40, 148,523.10 and 72,443.35 is: 108,665.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,015.40 : 148,523.10 = 72,443.35 : x
  2. Step 2: Convert to fraction form
    99,015.40/148,523.10 = 72,443.35/x
  3. Step 3: Cross multiply
    99,015.40x = 148,523.10 × 72,443.35
  4. Step 4: Simplify right side
    99,015.40x = 10,759,510,916.39
  5. Step 5: Solve for x
    x = 10,759,510,916.39/99,015.40
  6. Step 6: Final answer
    x = 108,665.03

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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.