Home / 103,206.86-142,423.62-57,884.93

Finding the Fourth Proportional to 103,206.86, 142,423.62 and 57,884.93

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Solution

The fourth proportional to 103,206.86, 142,423.62 and 57,884.93 is: 79,880.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,206.86 : 142,423.62 = 57,884.93 : x
  2. Step 2: Convert to fraction form
    103,206.86/142,423.62 = 57,884.93/x
  3. Step 3: Cross multiply
    103,206.86x = 142,423.62 × 57,884.93
  4. Step 4: Simplify right side
    103,206.86x = 8,244,180,984.62
  5. Step 5: Solve for x
    x = 8,244,180,984.62/103,206.86
  6. Step 6: Final answer
    x = 79,880.16

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.