Home / 99,764.46-137,698.52-57,347.60

Finding the Fourth Proportional to 99,764.46, 137,698.52 and 57,347.60

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Solution

The fourth proportional to 99,764.46, 137,698.52 and 57,347.60 is: 79,153.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,764.46 : 137,698.52 = 57,347.60 : x
  2. Step 2: Convert to fraction form
    99,764.46/137,698.52 = 57,347.60/x
  3. Step 3: Cross multiply
    99,764.46x = 137,698.52 × 57,347.60
  4. Step 4: Simplify right side
    99,764.46x = 7,896,678,670.32
  5. Step 5: Solve for x
    x = 7,896,678,670.32/99,764.46
  6. Step 6: Final answer
    x = 79,153.22

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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.