Home / 150,934.30-208,284.93-86,401.39

Finding the Fourth Proportional to 150,934.30, 208,284.93 and 86,401.39

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Solution

The fourth proportional to 150,934.30, 208,284.93 and 86,401.39 is: 119,231.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,934.30 : 208,284.93 = 86,401.39 : x
  2. Step 2: Convert to fraction form
    150,934.30/208,284.93 = 86,401.39/x
  3. Step 3: Cross multiply
    150,934.30x = 208,284.93 × 86,401.39
  4. Step 4: Simplify right side
    150,934.30x = 17,996,107,718.10
  5. Step 5: Solve for x
    x = 17,996,107,718.10/150,934.30
  6. Step 6: Final answer
    x = 119,231.40

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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.