Home / 105,007.60-157,511.40-103,625.20

Finding the Fourth Proportional to 105,007.60, 157,511.40 and 103,625.20

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Solution

The fourth proportional to 105,007.60, 157,511.40 and 103,625.20 is: 155,437.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,007.60 : 157,511.40 = 103,625.20 : x
  2. Step 2: Convert to fraction form
    105,007.60/157,511.40 = 103,625.20/x
  3. Step 3: Cross multiply
    105,007.60x = 157,511.40 × 103,625.20
  4. Step 4: Simplify right side
    105,007.60x = 16,322,150,327.28
  5. Step 5: Solve for x
    x = 16,322,150,327.28/105,007.60
  6. Step 6: Final answer
    x = 155,437.80

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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.