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Finding the Fourth Proportional to 88,908.10, 133,362.15 and 84,825.70

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Solution

The fourth proportional to 88,908.10, 133,362.15 and 84,825.70 is: 127,238.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,908.10 : 133,362.15 = 84,825.70 : x
  2. Step 2: Convert to fraction form
    88,908.10/133,362.15 = 84,825.70/x
  3. Step 3: Cross multiply
    88,908.10x = 133,362.15 × 84,825.70
  4. Step 4: Simplify right side
    88,908.10x = 11,312,537,727.26
  5. Step 5: Solve for x
    x = 11,312,537,727.26/88,908.10
  6. Step 6: Final answer
    x = 127,238.55

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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.