Home / 102,120.19-140,915.99-59,091.10

Finding the Fourth Proportional to 102,120.19, 140,915.99 and 59,091.10

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Solution

The fourth proportional to 102,120.19, 140,915.99 and 59,091.10 is: 81,540.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,120.19 : 140,915.99 = 59,091.10 : x
  2. Step 2: Convert to fraction form
    102,120.19/140,915.99 = 59,091.10/x
  3. Step 3: Cross multiply
    102,120.19x = 140,915.99 × 59,091.10
  4. Step 4: Simplify right side
    102,120.19x = 8,326,880,856.69
  5. Step 5: Solve for x
    x = 8,326,880,856.69/102,120.19
  6. Step 6: Final answer
    x = 81,540.01

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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.