Home / 98,861.02-136,428.24-54,149.02

Finding the Fourth Proportional to 98,861.02, 136,428.24 and 54,149.02

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Solution

The fourth proportional to 98,861.02, 136,428.24 and 54,149.02 is: 74,725.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,861.02 : 136,428.24 = 54,149.02 : x
  2. Step 2: Convert to fraction form
    98,861.02/136,428.24 = 54,149.02/x
  3. Step 3: Cross multiply
    98,861.02x = 136,428.24 × 54,149.02
  4. Step 4: Simplify right side
    98,861.02x = 7,387,455,496.32
  5. Step 5: Solve for x
    x = 7,387,455,496.32/98,861.02
  6. Step 6: Final answer
    x = 74,725.67

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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.