Home / 145,643.76-218,494.80-52,137.36

Finding the Fourth Proportional to 145,643.76, 218,494.80 and 52,137.36

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Solution

The fourth proportional to 145,643.76, 218,494.80 and 52,137.36 is: 78,216.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,643.76 : 218,494.80 = 52,137.36 : x
  2. Step 2: Convert to fraction form
    145,643.76/218,494.80 = 52,137.36/x
  3. Step 3: Cross multiply
    145,643.76x = 218,494.80 × 52,137.36
  4. Step 4: Simplify right side
    145,643.76x = 11,391,742,045.73
  5. Step 5: Solve for x
    x = 11,391,742,045.73/145,643.76
  6. Step 6: Final answer
    x = 78,216.48

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.