Home / 129,267.04-178,328.64-75,554.32

Finding the Fourth Proportional to 129,267.04, 178,328.64 and 75,554.32

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Solution

The fourth proportional to 129,267.04, 178,328.64 and 75,554.32 is: 104,229.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,267.04 : 178,328.64 = 75,554.32 : x
  2. Step 2: Convert to fraction form
    129,267.04/178,328.64 = 75,554.32/x
  3. Step 3: Cross multiply
    129,267.04x = 178,328.64 × 75,554.32
  4. Step 4: Simplify right side
    129,267.04x = 13,473,499,131.72
  5. Step 5: Solve for x
    x = 13,473,499,131.72/129,267.04
  6. Step 6: Final answer
    x = 104,229.97

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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.