Home / 148,118.68-204,191.14-105,603.40

Finding the Fourth Proportional to 148,118.68, 204,191.14 and 105,603.40

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Solution

The fourth proportional to 148,118.68, 204,191.14 and 105,603.40 is: 145,581.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,118.68 : 204,191.14 = 105,603.40 : x
  2. Step 2: Convert to fraction form
    148,118.68/204,191.14 = 105,603.40/x
  3. Step 3: Cross multiply
    148,118.68x = 204,191.14 × 105,603.40
  4. Step 4: Simplify right side
    148,118.68x = 21,563,278,633.88
  5. Step 5: Solve for x
    x = 21,563,278,633.88/148,118.68
  6. Step 6: Final answer
    x = 145,581.09

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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.