Home / 103,943.76-143,442.73-56,197.45

Finding the Fourth Proportional to 103,943.76, 143,442.73 and 56,197.45

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Solution

The fourth proportional to 103,943.76, 143,442.73 and 56,197.45 is: 77,552.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,943.76 : 143,442.73 = 56,197.45 : x
  2. Step 2: Convert to fraction form
    103,943.76/143,442.73 = 56,197.45/x
  3. Step 3: Cross multiply
    103,943.76x = 143,442.73 × 56,197.45
  4. Step 4: Simplify right side
    103,943.76x = 8,061,115,089.72
  5. Step 5: Solve for x
    x = 8,061,115,089.72/103,943.76
  6. Step 6: Final answer
    x = 77,552.66

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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.