Home / 151,460.86-208,950.28-90,172.76

Finding the Fourth Proportional to 151,460.86, 208,950.28 and 90,172.76

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Solution

The fourth proportional to 151,460.86, 208,950.28 and 90,172.76 is: 124,399.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,460.86 : 208,950.28 = 90,172.76 : x
  2. Step 2: Convert to fraction form
    151,460.86/208,950.28 = 90,172.76/x
  3. Step 3: Cross multiply
    151,460.86x = 208,950.28 × 90,172.76
  4. Step 4: Simplify right side
    151,460.86x = 18,841,623,450.37
  5. Step 5: Solve for x
    x = 18,841,623,450.37/151,460.86
  6. Step 6: Final answer
    x = 124,399.29

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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.