Home / 105,332.36-145,344.83-62,881.88

Finding the Fourth Proportional to 105,332.36, 145,344.83 and 62,881.88

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Solution

The fourth proportional to 105,332.36, 145,344.83 and 62,881.88 is: 86,768.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,332.36 : 145,344.83 = 62,881.88 : x
  2. Step 2: Convert to fraction form
    105,332.36/145,344.83 = 62,881.88/x
  3. Step 3: Cross multiply
    105,332.36x = 145,344.83 × 62,881.88
  4. Step 4: Simplify right side
    105,332.36x = 9,139,555,117.55
  5. Step 5: Solve for x
    x = 9,139,555,117.55/105,332.36
  6. Step 6: Final answer
    x = 86,768.73

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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.