Home / 88,113.03-121,288.68-76,051.79

Finding the Fourth Proportional to 88,113.03, 121,288.68 and 76,051.79

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Solution

The fourth proportional to 88,113.03, 121,288.68 and 76,051.79 is: 104,686.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,113.03 : 121,288.68 = 76,051.79 : x
  2. Step 2: Convert to fraction form
    88,113.03/121,288.68 = 76,051.79/x
  3. Step 3: Cross multiply
    88,113.03x = 121,288.68 × 76,051.79
  4. Step 4: Simplify right side
    88,113.03x = 9,224,221,102.32
  5. Step 5: Solve for x
    x = 9,224,221,102.32/88,113.03
  6. Step 6: Final answer
    x = 104,686.23

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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.