Home / 105,233.76-145,198.68-62,784

Finding the Fourth Proportional to 105,233.76, 145,198.68 and 62,784

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Solution

The fourth proportional to 105,233.76, 145,198.68 and 62,784 is: 86,627.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,233.76 : 145,198.68 = 62,784 : x
  2. Step 2: Convert to fraction form
    105,233.76/145,198.68 = 62,784/x
  3. Step 3: Cross multiply
    105,233.76x = 145,198.68 × 62,784
  4. Step 4: Simplify right side
    105,233.76x = 9,116,153,925.12
  5. Step 5: Solve for x
    x = 9,116,153,925.12/105,233.76
  6. Step 6: Final answer
    x = 86,627.66

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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.