Home / 387,464.59-581,186.14-103,157.58

Finding the Fourth Proportional to 387,464.59, 581,186.14 and 103,157.58

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Solution

The fourth proportional to 387,464.59, 581,186.14 and 103,157.58 is: 154,733.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,464.59 : 581,186.14 = 103,157.58 : x
  2. Step 2: Convert to fraction form
    387,464.59/581,186.14 = 103,157.58/x
  3. Step 3: Cross multiply
    387,464.59x = 581,186.14 × 103,157.58
  4. Step 4: Simplify right side
    387,464.59x = 59,953,755,989.84
  5. Step 5: Solve for x
    x = 59,953,755,989.84/387,464.59
  6. Step 6: Final answer
    x = 154,733.51

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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.