Home / 103,627.38-143,005.78-58,915.38

Finding the Fourth Proportional to 103,627.38, 143,005.78 and 58,915.38

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Solution

The fourth proportional to 103,627.38, 143,005.78 and 58,915.38 is: 81,303.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,627.38 : 143,005.78 = 58,915.38 : x
  2. Step 2: Convert to fraction form
    103,627.38/143,005.78 = 58,915.38/x
  3. Step 3: Cross multiply
    103,627.38x = 143,005.78 × 58,915.38
  4. Step 4: Simplify right side
    103,627.38x = 8,425,239,155.87
  5. Step 5: Solve for x
    x = 8,425,239,155.87/103,627.38
  6. Step 6: Final answer
    x = 81,303.22

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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.