Home / 286,137.36-429,251.22-86,432.94

Finding the Fourth Proportional to 286,137.36, 429,251.22 and 86,432.94

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Solution

The fourth proportional to 286,137.36, 429,251.22 and 86,432.94 is: 129,663.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,137.36 : 429,251.22 = 86,432.94 : x
  2. Step 2: Convert to fraction form
    286,137.36/429,251.22 = 86,432.94/x
  3. Step 3: Cross multiply
    286,137.36x = 429,251.22 × 86,432.94
  4. Step 4: Simplify right side
    286,137.36x = 37,101,444,943.19
  5. Step 5: Solve for x
    x = 37,101,444,943.19/286,137.36
  6. Step 6: Final answer
    x = 129,663.06

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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.