Home / 103,415.32-155,084.67-36,837.76

Finding the Fourth Proportional to 103,415.32, 155,084.67 and 36,837.76

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Solution

The fourth proportional to 103,415.32, 155,084.67 and 36,837.76 is: 55,242.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,415.32 : 155,084.67 = 36,837.76 : x
  2. Step 2: Convert to fraction form
    103,415.32/155,084.67 = 36,837.76/x
  3. Step 3: Cross multiply
    103,415.32x = 155,084.67 × 36,837.76
  4. Step 4: Simplify right side
    103,415.32x = 5,712,971,853.14
  5. Step 5: Solve for x
    x = 5,712,971,853.14/103,415.32
  6. Step 6: Final answer
    x = 55,242.99

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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.