Home / 99,618.30-149,509.05-98,840.70

Finding the Fourth Proportional to 99,618.30, 149,509.05 and 98,840.70

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Solution

The fourth proportional to 99,618.30, 149,509.05 and 98,840.70 is: 148,342.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,618.30 : 149,509.05 = 98,840.70 : x
  2. Step 2: Convert to fraction form
    99,618.30/149,509.05 = 98,840.70/x
  3. Step 3: Cross multiply
    99,618.30x = 149,509.05 × 98,840.70
  4. Step 4: Simplify right side
    99,618.30x = 14,777,579,158.34
  5. Step 5: Solve for x
    x = 14,777,579,158.34/99,618.30
  6. Step 6: Final answer
    x = 148,342.01

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.