Home / 189,386.48-284,188.26-77,045.96

Finding the Fourth Proportional to 189,386.48, 284,188.26 and 77,045.96

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Solution

The fourth proportional to 189,386.48, 284,188.26 and 77,045.96 is: 115,613.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,386.48 : 284,188.26 = 77,045.96 : x
  2. Step 2: Convert to fraction form
    189,386.48/284,188.26 = 77,045.96/x
  3. Step 3: Cross multiply
    189,386.48x = 284,188.26 × 77,045.96
  4. Step 4: Simplify right side
    189,386.48x = 21,895,557,312.43
  5. Step 5: Solve for x
    x = 21,895,557,312.43/189,386.48
  6. Step 6: Final answer
    x = 115,613.10

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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.