Home / 105,334.63-145,363.21-57,587.86

Finding the Fourth Proportional to 105,334.63, 145,363.21 and 57,587.86

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Solution

The fourth proportional to 105,334.63, 145,363.21 and 57,587.86 is: 79,472.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,334.63 : 145,363.21 = 57,587.86 : x
  2. Step 2: Convert to fraction form
    105,334.63/145,363.21 = 57,587.86/x
  3. Step 3: Cross multiply
    105,334.63x = 145,363.21 × 57,587.86
  4. Step 4: Simplify right side
    105,334.63x = 8,371,156,224.36
  5. Step 5: Solve for x
    x = 8,371,156,224.36/105,334.63
  6. Step 6: Final answer
    x = 79,472.03

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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.