Home / 129,464.69-178,762.61-101,250.77

Finding the Fourth Proportional to 129,464.69, 178,762.61 and 101,250.77

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Solution

The fourth proportional to 129,464.69, 178,762.61 and 101,250.77 is: 139,805.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,464.69 : 178,762.61 = 101,250.77 : x
  2. Step 2: Convert to fraction form
    129,464.69/178,762.61 = 101,250.77/x
  3. Step 3: Cross multiply
    129,464.69x = 178,762.61 × 101,250.77
  4. Step 4: Simplify right side
    129,464.69x = 18,099,851,269.02
  5. Step 5: Solve for x
    x = 18,099,851,269.02/129,464.69
  6. Step 6: Final answer
    x = 139,805.32

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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.