Home / 128,569.60-177,334.95-110,633.77

Finding the Fourth Proportional to 128,569.60, 177,334.95 and 110,633.77

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Solution

The fourth proportional to 128,569.60, 177,334.95 and 110,633.77 is: 152,596.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,569.60 : 177,334.95 = 110,633.77 : x
  2. Step 2: Convert to fraction form
    128,569.60/177,334.95 = 110,633.77/x
  3. Step 3: Cross multiply
    128,569.60x = 177,334.95 × 110,633.77
  4. Step 4: Simplify right side
    128,569.60x = 19,619,234,071.26
  5. Step 5: Solve for x
    x = 19,619,234,071.26/128,569.60
  6. Step 6: Final answer
    x = 152,596.21

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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.