Home / 105,881.63-146,116.76-62,869.70

Finding the Fourth Proportional to 105,881.63, 146,116.76 and 62,869.70

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Solution

The fourth proportional to 105,881.63, 146,116.76 and 62,869.70 is: 86,760.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,881.63 : 146,116.76 = 62,869.70 : x
  2. Step 2: Convert to fraction form
    105,881.63/146,116.76 = 62,869.70/x
  3. Step 3: Cross multiply
    105,881.63x = 146,116.76 × 62,869.70
  4. Step 4: Simplify right side
    105,881.63x = 9,186,316,917.12
  5. Step 5: Solve for x
    x = 9,186,316,917.12/105,881.63
  6. Step 6: Final answer
    x = 86,760.26

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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.