Home / 102,023.07-153,010.31-42,859.89

Finding the Fourth Proportional to 102,023.07, 153,010.31 and 42,859.89

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Solution

The fourth proportional to 102,023.07, 153,010.31 and 42,859.89 is: 64,279.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,023.07 : 153,010.31 = 42,859.89 : x
  2. Step 2: Convert to fraction form
    102,023.07/153,010.31 = 42,859.89/x
  3. Step 3: Cross multiply
    102,023.07x = 153,010.31 × 42,859.89
  4. Step 4: Simplify right side
    102,023.07x = 6,558,004,841.17
  5. Step 5: Solve for x
    x = 6,558,004,841.17/102,023.07
  6. Step 6: Final answer
    x = 64,279.63

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.