Home / 286,015.32-429,026.02-86,337.36

Finding the Fourth Proportional to 286,015.32, 429,026.02 and 86,337.36

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Solution

The fourth proportional to 286,015.32, 429,026.02 and 86,337.36 is: 129,506.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,015.32 : 429,026.02 = 86,337.36 : x
  2. Step 2: Convert to fraction form
    286,015.32/429,026.02 = 86,337.36/x
  3. Step 3: Cross multiply
    286,015.32x = 429,026.02 × 86,337.36
  4. Step 4: Simplify right side
    286,015.32x = 37,040,973,722.26
  5. Step 5: Solve for x
    x = 37,040,973,722.26/286,015.32
  6. Step 6: Final answer
    x = 129,506.96

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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.