Home / 127,925.10-191,887.65-72,629.10

Finding the Fourth Proportional to 127,925.10, 191,887.65 and 72,629.10

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Solution

The fourth proportional to 127,925.10, 191,887.65 and 72,629.10 is: 108,943.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,925.10 : 191,887.65 = 72,629.10 : x
  2. Step 2: Convert to fraction form
    127,925.10/191,887.65 = 72,629.10/x
  3. Step 3: Cross multiply
    127,925.10x = 191,887.65 × 72,629.10
  4. Step 4: Simplify right side
    127,925.10x = 13,936,627,320.62
  5. Step 5: Solve for x
    x = 13,936,627,320.62/127,925.10
  6. Step 6: Final answer
    x = 108,943.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.