Home / 455,931.30-683,896.95-118,971.30

Finding the Fourth Proportional to 455,931.30, 683,896.95 and 118,971.30

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Solution

The fourth proportional to 455,931.30, 683,896.95 and 118,971.30 is: 178,456.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,931.30 : 683,896.95 = 118,971.30 : x
  2. Step 2: Convert to fraction form
    455,931.30/683,896.95 = 118,971.30/x
  3. Step 3: Cross multiply
    455,931.30x = 683,896.95 × 118,971.30
  4. Step 4: Simplify right side
    455,931.30x = 81,364,109,207.54
  5. Step 5: Solve for x
    x = 81,364,109,207.54/455,931.30
  6. Step 6: Final answer
    x = 178,456.95

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Similar ratio
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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.