Home / 387,466.34-581,188.77-103,159.33

Finding the Fourth Proportional to 387,466.34, 581,188.77 and 103,159.33

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Solution

The fourth proportional to 387,466.34, 581,188.77 and 103,159.33 is: 154,736.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,466.34 : 581,188.77 = 103,159.33 : x
  2. Step 2: Convert to fraction form
    387,466.34/581,188.77 = 103,159.33/x
  3. Step 3: Cross multiply
    387,466.34x = 581,188.77 × 103,159.33
  4. Step 4: Simplify right side
    387,466.34x = 59,955,044,116.72
  5. Step 5: Solve for x
    x = 59,955,044,116.72/387,466.34
  6. Step 6: Final answer
    x = 154,736.14

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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.