Home / 103,764.48-143,186.88-58,440

Finding the Fourth Proportional to 103,764.48, 143,186.88 and 58,440

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Solution

The fourth proportional to 103,764.48, 143,186.88 and 58,440 is: 80,642.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,764.48 : 143,186.88 = 58,440 : x
  2. Step 2: Convert to fraction form
    103,764.48/143,186.88 = 58,440/x
  3. Step 3: Cross multiply
    103,764.48x = 143,186.88 × 58,440
  4. Step 4: Simplify right side
    103,764.48x = 8,367,841,267.20
  5. Step 5: Solve for x
    x = 8,367,841,267.20/103,764.48
  6. Step 6: Final answer
    x = 80,642.64

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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.