Home / 286,769.58-429,902.86-109,158.45

Finding the Fourth Proportional to 286,769.58, 429,902.86 and 109,158.45

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Solution

The fourth proportional to 286,769.58, 429,902.86 and 109,158.45 is: 163,641.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,769.58 : 429,902.86 = 109,158.45 : x
  2. Step 2: Convert to fraction form
    286,769.58/429,902.86 = 109,158.45/x
  3. Step 3: Cross multiply
    286,769.58x = 429,902.86 × 109,158.45
  4. Step 4: Simplify right side
    286,769.58x = 46,927,529,302.37
  5. Step 5: Solve for x
    x = 46,927,529,302.37/286,769.58
  6. Step 6: Final answer
    x = 163,641.94

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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.