Home / 122,343.85-183,515.78-103,681.45

Finding the Fourth Proportional to 122,343.85, 183,515.78 and 103,681.45

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Solution

The fourth proportional to 122,343.85, 183,515.78 and 103,681.45 is: 155,522.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,343.85 : 183,515.78 = 103,681.45 : x
  2. Step 2: Convert to fraction form
    122,343.85/183,515.78 = 103,681.45/x
  3. Step 3: Cross multiply
    122,343.85x = 183,515.78 × 103,681.45
  4. Step 4: Simplify right side
    122,343.85x = 19,027,182,168.28
  5. Step 5: Solve for x
    x = 19,027,182,168.28/122,343.85
  6. Step 6: Final answer
    x = 155,522.18

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1.5x scale

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.