Home / 105,187,348.80-157,673,714.40-71,112,139.20

Finding the Fourth Proportional to 105,187,348.80, 157,673,714.40 and 71,112,139.20

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Solution

The fourth proportional to 105,187,348.80, 157,673,714.40 and 71,112,139.20 is: 106,595,662.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,187,348.80 : 157,673,714.40 = 71,112,139.20 : x
  2. Step 2: Convert to fraction form
    105,187,348.80/157,673,714.40 = 71,112,139.20/x
  3. Step 3: Cross multiply
    105,187,348.80x = 157,673,714.40 × 71,112,139.20
  4. Step 4: Simplify right side
    105,187,348.80x = 11,212,515,126,593,846
  5. Step 5: Solve for x
    x = 11,212,515,126,593,846/105,187,348.80
  6. Step 6: Final answer
    x = 106,595,662.45

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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.