Home / 257,619.08-386,463.71-89,094.18

Finding the Fourth Proportional to 257,619.08, 386,463.71 and 89,094.18

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Solution

The fourth proportional to 257,619.08, 386,463.71 and 89,094.18 is: 133,653.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,619.08 : 386,463.71 = 89,094.18 : x
  2. Step 2: Convert to fraction form
    257,619.08/386,463.71 = 89,094.18/x
  3. Step 3: Cross multiply
    257,619.08x = 386,463.71 × 89,094.18
  4. Step 4: Simplify right side
    257,619.08x = 34,431,666,339.17
  5. Step 5: Solve for x
    x = 34,431,666,339.17/257,619.08
  6. Step 6: Final answer
    x = 133,653.40

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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.