Home / 129,769.02-179,080.74-70,153.02

Finding the Fourth Proportional to 129,769.02, 179,080.74 and 70,153.02

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Solution

The fourth proportional to 129,769.02, 179,080.74 and 70,153.02 is: 96,810.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,769.02 : 179,080.74 = 70,153.02 : x
  2. Step 2: Convert to fraction form
    129,769.02/179,080.74 = 70,153.02/x
  3. Step 3: Cross multiply
    129,769.02x = 179,080.74 × 70,153.02
  4. Step 4: Simplify right side
    129,769.02x = 12,563,054,734.83
  5. Step 5: Solve for x
    x = 12,563,054,734.83/129,769.02
  6. Step 6: Final answer
    x = 96,810.89

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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.