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Finding the Fourth Proportional to 191,915.90, 264,952.15 and 133,085.60

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Solution

The fourth proportional to 191,915.90, 264,952.15 and 133,085.60 is: 183,733.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,915.90 : 264,952.15 = 133,085.60 : x
  2. Step 2: Convert to fraction form
    191,915.90/264,952.15 = 133,085.60/x
  3. Step 3: Cross multiply
    191,915.90x = 264,952.15 × 133,085.60
  4. Step 4: Simplify right side
    191,915.90x = 35,261,315,854.04
  5. Step 5: Solve for x
    x = 35,261,315,854.04/191,915.90
  6. Step 6: Final answer
    x = 183,733.17

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.