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Finding the Fourth Proportional to 105,315.52, 158,035.76 and 38,802.40

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Solution

The fourth proportional to 105,315.52, 158,035.76 and 38,802.40 is: 58,226.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,315.52 : 158,035.76 = 38,802.40 : x
  2. Step 2: Convert to fraction form
    105,315.52/158,035.76 = 38,802.40/x
  3. Step 3: Cross multiply
    105,315.52x = 158,035.76 × 38,802.40
  4. Step 4: Simplify right side
    105,315.52x = 6,132,166,773.82
  5. Step 5: Solve for x
    x = 6,132,166,773.82/105,315.52
  6. Step 6: Final answer
    x = 58,226.62

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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.