Home / 107,122.45-147,492.43-90,956.06

Finding the Fourth Proportional to 107,122.45, 147,492.43 and 90,956.06

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Solution

The fourth proportional to 107,122.45, 147,492.43 and 90,956.06 is: 125,233.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,122.45 : 147,492.43 = 90,956.06 : x
  2. Step 2: Convert to fraction form
    107,122.45/147,492.43 = 90,956.06/x
  3. Step 3: Cross multiply
    107,122.45x = 147,492.43 × 90,956.06
  4. Step 4: Simplify right side
    107,122.45x = 13,415,329,857.85
  5. Step 5: Solve for x
    x = 13,415,329,857.85/107,122.45
  6. Step 6: Final answer
    x = 125,233.60

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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.