Home / 125,004.08-172,509.74-68,415.45

Finding the Fourth Proportional to 125,004.08, 172,509.74 and 68,415.45

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Solution

The fourth proportional to 125,004.08, 172,509.74 and 68,415.45 is: 94,415.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,004.08 : 172,509.74 = 68,415.45 : x
  2. Step 2: Convert to fraction form
    125,004.08/172,509.74 = 68,415.45/x
  3. Step 3: Cross multiply
    125,004.08x = 172,509.74 × 68,415.45
  4. Step 4: Simplify right side
    125,004.08x = 11,802,331,491.48
  5. Step 5: Solve for x
    x = 11,802,331,491.48/125,004.08
  6. Step 6: Final answer
    x = 94,415.57

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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.