Home / 90,231.04-124,399.52-74,039.04

Finding the Fourth Proportional to 90,231.04, 124,399.52 and 74,039.04

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Solution

The fourth proportional to 90,231.04, 124,399.52 and 74,039.04 is: 102,075.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,231.04 : 124,399.52 = 74,039.04 : x
  2. Step 2: Convert to fraction form
    90,231.04/124,399.52 = 74,039.04/x
  3. Step 3: Cross multiply
    90,231.04x = 124,399.52 × 74,039.04
  4. Step 4: Simplify right side
    90,231.04x = 9,210,421,037.26
  5. Step 5: Solve for x
    x = 9,210,421,037.26/90,231.04
  6. Step 6: Final answer
    x = 102,075.97

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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.