Home / 90,503.14-135,878.93-46,159.78

Finding the Fourth Proportional to 90,503.14, 135,878.93 and 46,159.78

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Solution

The fourth proportional to 90,503.14, 135,878.93 and 46,159.78 is: 69,303.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,503.14 : 135,878.93 = 46,159.78 : x
  2. Step 2: Convert to fraction form
    90,503.14/135,878.93 = 46,159.78/x
  3. Step 3: Cross multiply
    90,503.14x = 135,878.93 × 46,159.78
  4. Step 4: Simplify right side
    90,503.14x = 6,272,141,515.44
  5. Step 5: Solve for x
    x = 6,272,141,515.44/90,503.14
  6. Step 6: Final answer
    x = 69,303.03

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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.