Home / 210,619.95-290,621.58-119,977.68

Finding the Fourth Proportional to 210,619.95, 290,621.58 and 119,977.68

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Solution

The fourth proportional to 210,619.95, 290,621.58 and 119,977.68 is: 165,549.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,619.95 : 290,621.58 = 119,977.68 : x
  2. Step 2: Convert to fraction form
    210,619.95/290,621.58 = 119,977.68/x
  3. Step 3: Cross multiply
    210,619.95x = 290,621.58 × 119,977.68
  4. Step 4: Simplify right side
    210,619.95x = 34,868,102,926.33
  5. Step 5: Solve for x
    x = 34,868,102,926.33/210,619.95
  6. Step 6: Final answer
    x = 165,549.86

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1.5x scale

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.