Home / 98,688.20-148,032.30-79,005.20

Finding the Fourth Proportional to 98,688.20, 148,032.30 and 79,005.20

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Solution

The fourth proportional to 98,688.20, 148,032.30 and 79,005.20 is: 118,507.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,688.20 : 148,032.30 = 79,005.20 : x
  2. Step 2: Convert to fraction form
    98,688.20/148,032.30 = 79,005.20/x
  3. Step 3: Cross multiply
    98,688.20x = 148,032.30 × 79,005.20
  4. Step 4: Simplify right side
    98,688.20x = 11,695,321,467.96
  5. Step 5: Solve for x
    x = 11,695,321,467.96/98,688.20
  6. Step 6: Final answer
    x = 118,507.80

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1.5x scale

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.