Home / 151,135.60-208,554.32-87,477.36

Finding the Fourth Proportional to 151,135.60, 208,554.32 and 87,477.36

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Solution

The fourth proportional to 151,135.60, 208,554.32 and 87,477.36 is: 120,711.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,135.60 : 208,554.32 = 87,477.36 : x
  2. Step 2: Convert to fraction form
    151,135.60/208,554.32 = 87,477.36/x
  3. Step 3: Cross multiply
    151,135.60x = 208,554.32 × 87,477.36
  4. Step 4: Simplify right side
    151,135.60x = 18,243,781,330.20
  5. Step 5: Solve for x
    x = 18,243,781,330.20/151,135.60
  6. Step 6: Final answer
    x = 120,711.34

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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.