Home / 151,383.48-208,909.26-87,758.16

Finding the Fourth Proportional to 151,383.48, 208,909.26 and 87,758.16

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Solution

The fourth proportional to 151,383.48, 208,909.26 and 87,758.16 is: 121,106.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,383.48 : 208,909.26 = 87,758.16 : x
  2. Step 2: Convert to fraction form
    151,383.48/208,909.26 = 87,758.16/x
  3. Step 3: Cross multiply
    151,383.48x = 208,909.26 × 87,758.16
  4. Step 4: Simplify right side
    151,383.48x = 18,333,492,264.56
  5. Step 5: Solve for x
    x = 18,333,492,264.56/151,383.48
  6. Step 6: Final answer
    x = 121,106.29

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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.