Home / 140,075.08-210,151.50-77,789.32

Finding the Fourth Proportional to 140,075.08, 210,151.50 and 77,789.32

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Solution

The fourth proportional to 140,075.08, 210,151.50 and 77,789.32 is: 116,705.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,075.08 : 210,151.50 = 77,789.32 : x
  2. Step 2: Convert to fraction form
    140,075.08/210,151.50 = 77,789.32/x
  3. Step 3: Cross multiply
    140,075.08x = 210,151.50 × 77,789.32
  4. Step 4: Simplify right side
    140,075.08x = 16,347,542,281.98
  5. Step 5: Solve for x
    x = 16,347,542,281.98/140,075.08
  6. Step 6: Final answer
    x = 116,705.57

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1.5x scale

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.