Home / 103,937.07-143,432.73-56,190.42

Finding the Fourth Proportional to 103,937.07, 143,432.73 and 56,190.42

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Solution

The fourth proportional to 103,937.07, 143,432.73 and 56,190.42 is: 77,542.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,937.07 : 143,432.73 = 56,190.42 : x
  2. Step 2: Convert to fraction form
    103,937.07/143,432.73 = 56,190.42/x
  3. Step 3: Cross multiply
    103,937.07x = 143,432.73 × 56,190.42
  4. Step 4: Simplify right side
    103,937.07x = 8,059,545,340.45
  5. Step 5: Solve for x
    x = 8,059,545,340.45/103,937.07
  6. Step 6: Final answer
    x = 77,542.55

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1.5x scale

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.