Home / 105,345.78-145,376.19-57,598.62

Finding the Fourth Proportional to 105,345.78, 145,376.19 and 57,598.62

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Solution

The fourth proportional to 105,345.78, 145,376.19 and 57,598.62 is: 79,485.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,345.78 : 145,376.19 = 57,598.62 : x
  2. Step 2: Convert to fraction form
    105,345.78/145,376.19 = 57,598.62/x
  3. Step 3: Cross multiply
    105,345.78x = 145,376.19 × 57,598.62
  4. Step 4: Simplify right side
    105,345.78x = 8,373,467,924.86
  5. Step 5: Solve for x
    x = 8,373,467,924.86/105,345.78
  6. Step 6: Final answer
    x = 79,485.56

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.