Home / 285,565.79-427,898.06-105,403.25

Finding the Fourth Proportional to 285,565.79, 427,898.06 and 105,403.25

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Solution

The fourth proportional to 285,565.79, 427,898.06 and 105,403.25 is: 157,938.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,565.79 : 427,898.06 = 105,403.25 : x
  2. Step 2: Convert to fraction form
    285,565.79/427,898.06 = 105,403.25/x
  3. Step 3: Cross multiply
    285,565.79x = 427,898.06 × 105,403.25
  4. Step 4: Simplify right side
    285,565.79x = 45,101,844,053.20
  5. Step 5: Solve for x
    x = 45,101,844,053.20/285,565.79
  6. Step 6: Final answer
    x = 157,938.54

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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.