Home / 98,548.02-135,836.52-77,000.10

Finding the Fourth Proportional to 98,548.02, 135,836.52 and 77,000.10

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Solution

The fourth proportional to 98,548.02, 135,836.52 and 77,000.10 is: 106,135.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,548.02 : 135,836.52 = 77,000.10 : x
  2. Step 2: Convert to fraction form
    98,548.02/135,836.52 = 77,000.10/x
  3. Step 3: Cross multiply
    98,548.02x = 135,836.52 × 77,000.10
  4. Step 4: Simplify right side
    98,548.02x = 10,459,425,623.65
  5. Step 5: Solve for x
    x = 10,459,425,623.65/98,548.02
  6. Step 6: Final answer
    x = 106,135.32

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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.