Home / 387,703.14-581,582.44-103,392.18

Finding the Fourth Proportional to 387,703.14, 581,582.44 and 103,392.18

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Solution

The fourth proportional to 387,703.14, 581,582.44 and 103,392.18 is: 155,095.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,703.14 : 581,582.44 = 103,392.18 : x
  2. Step 2: Convert to fraction form
    387,703.14/581,582.44 = 103,392.18/x
  3. Step 3: Cross multiply
    387,703.14x = 581,582.44 × 103,392.18
  4. Step 4: Simplify right side
    387,703.14x = 60,131,076,321.32
  5. Step 5: Solve for x
    x = 60,131,076,321.32/387,703.14
  6. Step 6: Final answer
    x = 155,095.67

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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.