Home / 103,436.16-155,181.92-56,040.09

Finding the Fourth Proportional to 103,436.16, 155,181.92 and 56,040.09

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Solution

The fourth proportional to 103,436.16, 155,181.92 and 56,040.09 is: 84,075.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,436.16 : 155,181.92 = 56,040.09 : x
  2. Step 2: Convert to fraction form
    103,436.16/155,181.92 = 56,040.09/x
  3. Step 3: Cross multiply
    103,436.16x = 155,181.92 × 56,040.09
  4. Step 4: Simplify right side
    103,436.16x = 8,696,408,763.17
  5. Step 5: Solve for x
    x = 8,696,408,763.17/103,436.16
  6. Step 6: Final answer
    x = 84,075.13

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.