Home / 151,240.08-208,709.28-84,172.08

Finding the Fourth Proportional to 151,240.08, 208,709.28 and 84,172.08

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Solution

The fourth proportional to 151,240.08, 208,709.28 and 84,172.08 is: 116,156.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,240.08 : 208,709.28 = 84,172.08 : x
  2. Step 2: Convert to fraction form
    151,240.08/208,709.28 = 84,172.08/x
  3. Step 3: Cross multiply
    151,240.08x = 208,709.28 × 84,172.08
  4. Step 4: Simplify right side
    151,240.08x = 17,567,494,212.90
  5. Step 5: Solve for x
    x = 17,567,494,212.90/151,240.08
  6. Step 6: Final answer
    x = 116,156.34

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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.