Home / 139,031.20-208,546.80-94,416.40

Finding the Fourth Proportional to 139,031.20, 208,546.80 and 94,416.40

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Solution

The fourth proportional to 139,031.20, 208,546.80 and 94,416.40 is: 141,624.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,031.20 : 208,546.80 = 94,416.40 : x
  2. Step 2: Convert to fraction form
    139,031.20/208,546.80 = 94,416.40/x
  3. Step 3: Cross multiply
    139,031.20x = 208,546.80 × 94,416.40
  4. Step 4: Simplify right side
    139,031.20x = 19,690,238,087.52
  5. Step 5: Solve for x
    x = 19,690,238,087.52/139,031.20
  6. Step 6: Final answer
    x = 141,624.60

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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.