Home / 103,495.18-155,303.02-43,519.32

Finding the Fourth Proportional to 103,495.18, 155,303.02 and 43,519.32

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Solution

The fourth proportional to 103,495.18, 155,303.02 and 43,519.32 is: 65,304.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,495.18 : 155,303.02 = 43,519.32 : x
  2. Step 2: Convert to fraction form
    103,495.18/155,303.02 = 43,519.32/x
  3. Step 3: Cross multiply
    103,495.18x = 155,303.02 × 43,519.32
  4. Step 4: Simplify right side
    103,495.18x = 6,758,681,824.35
  5. Step 5: Solve for x
    x = 6,758,681,824.35/103,495.18
  6. Step 6: Final answer
    x = 65,304.31

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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.