Home / 123,453.32-170,368.80-75,679.16

Finding the Fourth Proportional to 123,453.32, 170,368.80 and 75,679.16

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Solution

The fourth proportional to 123,453.32, 170,368.80 and 75,679.16 is: 104,439.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,453.32 : 170,368.80 = 75,679.16 : x
  2. Step 2: Convert to fraction form
    123,453.32/170,368.80 = 75,679.16/x
  3. Step 3: Cross multiply
    123,453.32x = 170,368.80 × 75,679.16
  4. Step 4: Simplify right side
    123,453.32x = 12,893,367,674.21
  5. Step 5: Solve for x
    x = 12,893,367,674.21/123,453.32
  6. Step 6: Final answer
    x = 104,439.21

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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.