Home / 387,703.63-581,583.18-103,392.67

Finding the Fourth Proportional to 387,703.63, 581,583.18 and 103,392.67

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Solution

The fourth proportional to 387,703.63, 581,583.18 and 103,392.67 is: 155,096.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,703.63 : 581,583.18 = 103,392.67 : x
  2. Step 2: Convert to fraction form
    387,703.63/581,583.18 = 103,392.67/x
  3. Step 3: Cross multiply
    387,703.63x = 581,583.18 × 103,392.67
  4. Step 4: Simplify right side
    387,703.63x = 60,131,437,807.29
  5. Step 5: Solve for x
    x = 60,131,437,807.29/387,703.63
  6. Step 6: Final answer
    x = 155,096.40

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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.