Home / 105,538,501.08-158,487,493.86-68,713,075.80

Finding the Fourth Proportional to 105,538,501.08, 158,487,493.86 and 68,713,075.80

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Solution

The fourth proportional to 105,538,501.08, 158,487,493.86 and 68,713,075.80 is: 103,186,638.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,538,501.08 : 158,487,493.86 = 68,713,075.80 : x
  2. Step 2: Convert to fraction form
    105,538,501.08/158,487,493.86 = 68,713,075.80/x
  3. Step 3: Cross multiply
    105,538,501.08x = 158,487,493.86 × 68,713,075.80
  4. Step 4: Simplify right side
    105,538,501.08x = 10,890,163,178,954,216
  5. Step 5: Solve for x
    x = 10,890,163,178,954,216/105,538,501.08
  6. Step 6: Final answer
    x = 103,186,638.69

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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.