Home / 150,920.48-208,164.84-128,102.07

Finding the Fourth Proportional to 150,920.48, 208,164.84 and 128,102.07

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Solution

The fourth proportional to 150,920.48, 208,164.84 and 128,102.07 is: 176,691.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,920.48 : 208,164.84 = 128,102.07 : x
  2. Step 2: Convert to fraction form
    150,920.48/208,164.84 = 128,102.07/x
  3. Step 3: Cross multiply
    150,920.48x = 208,164.84 × 128,102.07
  4. Step 4: Simplify right side
    150,920.48x = 26,666,347,205.45
  5. Step 5: Solve for x
    x = 26,666,347,205.45/150,920.48
  6. Step 6: Final answer
    x = 176,691.37

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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.