Home / 151,027.20-208,454.40-91,430.40

Finding the Fourth Proportional to 151,027.20, 208,454.40 and 91,430.40

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Solution

The fourth proportional to 151,027.20, 208,454.40 and 91,430.40 is: 126,196.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,027.20 : 208,454.40 = 91,430.40 : x
  2. Step 2: Convert to fraction form
    151,027.20/208,454.40 = 91,430.40/x
  3. Step 3: Cross multiply
    151,027.20x = 208,454.40 × 91,430.40
  4. Step 4: Simplify right side
    151,027.20x = 19,059,069,173.76
  5. Step 5: Solve for x
    x = 19,059,069,173.76/151,027.20
  6. Step 6: Final answer
    x = 126,196.27

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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.