Home / 105,039.10-157,484.84-38,470.58

Finding the Fourth Proportional to 105,039.10, 157,484.84 and 38,470.58

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Solution

The fourth proportional to 105,039.10, 157,484.84 and 38,470.58 is: 57,678.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,039.10 : 157,484.84 = 38,470.58 : x
  2. Step 2: Convert to fraction form
    105,039.10/157,484.84 = 38,470.58/x
  3. Step 3: Cross multiply
    105,039.10x = 157,484.84 × 38,470.58
  4. Step 4: Simplify right side
    105,039.10x = 6,058,533,789.88
  5. Step 5: Solve for x
    x = 6,058,533,789.88/105,039.10
  6. Step 6: Final answer
    x = 57,678.84

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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.