Home / 191,585.58-287,378.19-90,360.02

Finding the Fourth Proportional to 191,585.58, 287,378.19 and 90,360.02

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Solution

The fourth proportional to 191,585.58, 287,378.19 and 90,360.02 is: 135,539.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,585.58 : 287,378.19 = 90,360.02 : x
  2. Step 2: Convert to fraction form
    191,585.58/287,378.19 = 90,360.02/x
  3. Step 3: Cross multiply
    191,585.58x = 287,378.19 × 90,360.02
  4. Step 4: Simplify right side
    191,585.58x = 25,967,497,559.07
  5. Step 5: Solve for x
    x = 25,967,497,559.07/191,585.58
  6. Step 6: Final answer
    x = 135,539.94

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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.