Home / 151,178.10-208,627.34-86,645.94

Finding the Fourth Proportional to 151,178.10, 208,627.34 and 86,645.94

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Solution

The fourth proportional to 151,178.10, 208,627.34 and 86,645.94 is: 119,572.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,178.10 : 208,627.34 = 86,645.94 : x
  2. Step 2: Convert to fraction form
    151,178.10/208,627.34 = 86,645.94/x
  3. Step 3: Cross multiply
    151,178.10x = 208,627.34 × 86,645.94
  4. Step 4: Simplify right side
    151,178.10x = 18,076,711,984.00
  5. Step 5: Solve for x
    x = 18,076,711,984.00/151,178.10
  6. Step 6: Final answer
    x = 119,572.29

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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.