Home / 103,627.10-143,005.40-58,915.10

Finding the Fourth Proportional to 103,627.10, 143,005.40 and 58,915.10

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Solution

The fourth proportional to 103,627.10, 143,005.40 and 58,915.10 is: 81,302.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,627.10 : 143,005.40 = 58,915.10 : x
  2. Step 2: Convert to fraction form
    103,627.10/143,005.40 = 58,915.10/x
  3. Step 3: Cross multiply
    103,627.10x = 143,005.40 × 58,915.10
  4. Step 4: Simplify right side
    103,627.10x = 8,425,177,441.54
  5. Step 5: Solve for x
    x = 8,425,177,441.54/103,627.10
  6. Step 6: Final answer
    x = 81,302.84

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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.