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Finding the Fourth Proportional to 98,670.80, 136,176.25 and 60,455.71

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Solution

The fourth proportional to 98,670.80, 136,176.25 and 60,455.71 is: 83,435.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,670.80 : 136,176.25 = 60,455.71 : x
  2. Step 2: Convert to fraction form
    98,670.80/136,176.25 = 60,455.71/x
  3. Step 3: Cross multiply
    98,670.80x = 136,176.25 × 60,455.71
  4. Step 4: Simplify right side
    98,670.80x = 8,232,631,198.01
  5. Step 5: Solve for x
    x = 8,232,631,198.01/98,670.80
  6. Step 6: Final answer
    x = 83,435.34

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1.5x scale

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.