Home / 205,159.10-307,707.87-64,899.50

Finding the Fourth Proportional to 205,159.10, 307,707.87 and 64,899.50

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Solution

The fourth proportional to 205,159.10, 307,707.87 and 64,899.50 is: 97,339.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,159.10 : 307,707.87 = 64,899.50 : x
  2. Step 2: Convert to fraction form
    205,159.10/307,707.87 = 64,899.50/x
  3. Step 3: Cross multiply
    205,159.10x = 307,707.87 × 64,899.50
  4. Step 4: Simplify right side
    205,159.10x = 19,970,086,909.07
  5. Step 5: Solve for x
    x = 19,970,086,909.07/205,159.10
  6. Step 6: Final answer
    x = 97,339.51

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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.