Home / 124,370.72-171,582.78-76,541.03

Finding the Fourth Proportional to 124,370.72, 171,582.78 and 76,541.03

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Solution

The fourth proportional to 124,370.72, 171,582.78 and 76,541.03 is: 105,596.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,370.72 : 171,582.78 = 76,541.03 : x
  2. Step 2: Convert to fraction form
    124,370.72/171,582.78 = 76,541.03/x
  3. Step 3: Cross multiply
    124,370.72x = 171,582.78 × 76,541.03
  4. Step 4: Simplify right side
    124,370.72x = 13,133,122,711.46
  5. Step 5: Solve for x
    x = 13,133,122,711.46/124,370.72
  6. Step 6: Final answer
    x = 105,596.58

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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.