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Finding the Fourth Proportional to 98,969.50, 136,522.02 and 58,643.65

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Solution

The fourth proportional to 98,969.50, 136,522.02 and 58,643.65 is: 80,895.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,969.50 : 136,522.02 = 58,643.65 : x
  2. Step 2: Convert to fraction form
    98,969.50/136,522.02 = 58,643.65/x
  3. Step 3: Cross multiply
    98,969.50x = 136,522.02 × 58,643.65
  4. Step 4: Simplify right side
    98,969.50x = 8,006,149,558.17
  5. Step 5: Solve for x
    x = 8,006,149,558.17/98,969.50
  6. Step 6: Final answer
    x = 80,895.12

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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.