Home / 129,569.06-178,744.18-75,820.80

Finding the Fourth Proportional to 129,569.06, 178,744.18 and 75,820.80

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Solution

The fourth proportional to 129,569.06, 178,744.18 and 75,820.80 is: 104,596.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,569.06 : 178,744.18 = 75,820.80 : x
  2. Step 2: Convert to fraction form
    129,569.06/178,744.18 = 75,820.80/x
  3. Step 3: Cross multiply
    129,569.06x = 178,744.18 × 75,820.80
  4. Step 4: Simplify right side
    129,569.06x = 13,552,525,829.22
  5. Step 5: Solve for x
    x = 13,552,525,829.22/129,569.06
  6. Step 6: Final answer
    x = 104,596.93

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1.5x scale

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.