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Finding the Fourth Proportional to 109,342.67, 150,896.00 and 105,376.91

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Solution

The fourth proportional to 109,342.67, 150,896.00 and 105,376.91 is: 145,423.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,342.67 : 150,896.00 = 105,376.91 : x
  2. Step 2: Convert to fraction form
    109,342.67/150,896.00 = 105,376.91/x
  3. Step 3: Cross multiply
    109,342.67x = 150,896.00 × 105,376.91
  4. Step 4: Simplify right side
    109,342.67x = 15,900,953,684.48
  5. Step 5: Solve for x
    x = 15,900,953,684.48/109,342.67
  6. Step 6: Final answer
    x = 145,423.13

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1.5x scale

Why These Related Problems?

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