Home / 136,898.43-188,901.16-76,461.36

Finding the Fourth Proportional to 136,898.43, 188,901.16 and 76,461.36

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Solution

The fourth proportional to 136,898.43, 188,901.16 and 76,461.36 is: 105,506.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,898.43 : 188,901.16 = 76,461.36 : x
  2. Step 2: Convert to fraction form
    136,898.43/188,901.16 = 76,461.36/x
  3. Step 3: Cross multiply
    136,898.43x = 188,901.16 × 76,461.36
  4. Step 4: Simplify right side
    136,898.43x = 14,443,639,408.02
  5. Step 5: Solve for x
    x = 14,443,639,408.02/136,898.43
  6. Step 6: Final answer
    x = 105,506.25

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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.