Home / 140,100.13-210,075.93-61,122.09

Finding the Fourth Proportional to 140,100.13, 210,075.93 and 61,122.09

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Solution

The fourth proportional to 140,100.13, 210,075.93 and 61,122.09 is: 91,650.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,100.13 : 210,075.93 = 61,122.09 : x
  2. Step 2: Convert to fraction form
    140,100.13/210,075.93 = 61,122.09/x
  3. Step 3: Cross multiply
    140,100.13x = 210,075.93 × 61,122.09
  4. Step 4: Simplify right side
    140,100.13x = 12,840,280,688.08
  5. Step 5: Solve for x
    x = 12,840,280,688.08/140,100.13
  6. Step 6: Final answer
    x = 91,650.74

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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.