Home / 169,171.65-253,412.64-80,155.26

Finding the Fourth Proportional to 169,171.65, 253,412.64 and 80,155.26

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Solution

The fourth proportional to 169,171.65, 253,412.64 and 80,155.26 is: 120,069.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,171.65 : 253,412.64 = 80,155.26 : x
  2. Step 2: Convert to fraction form
    169,171.65/253,412.64 = 80,155.26/x
  3. Step 3: Cross multiply
    169,171.65x = 253,412.64 × 80,155.26
  4. Step 4: Simplify right side
    169,171.65x = 20,312,356,046.49
  5. Step 5: Solve for x
    x = 20,312,356,046.49/169,171.65
  6. Step 6: Final answer
    x = 120,069.50

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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.