Home / 123,880,178.20-170,959,140.76-70,967,112.31

Finding the Fourth Proportional to 123,880,178.20, 170,959,140.76 and 70,967,112.31

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Solution

The fourth proportional to 123,880,178.20, 170,959,140.76 and 70,967,112.31 is: 97,937,189.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,880,178.20 : 170,959,140.76 = 70,967,112.31 : x
  2. Step 2: Convert to fraction form
    123,880,178.20/170,959,140.76 = 70,967,112.31/x
  3. Step 3: Cross multiply
    123,880,178.20x = 170,959,140.76 × 70,967,112.31
  4. Step 4: Simplify right side
    123,880,178.20x = 12,132,476,542,985,998
  5. Step 5: Solve for x
    x = 12,132,476,542,985,998/123,880,178.20
  6. Step 6: Final answer
    x = 97,937,189.95

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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.