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Finding the Fourth Proportional to 104,088.32, 143,506.32 and 66,348.80

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Solution

The fourth proportional to 104,088.32, 143,506.32 and 66,348.80 is: 91,474.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,088.32 : 143,506.32 = 66,348.80 : x
  2. Step 2: Convert to fraction form
    104,088.32/143,506.32 = 66,348.80/x
  3. Step 3: Cross multiply
    104,088.32x = 143,506.32 × 66,348.80
  4. Step 4: Simplify right side
    104,088.32x = 9,521,472,124.42
  5. Step 5: Solve for x
    x = 9,521,472,124.42/104,088.32
  6. Step 6: Final answer
    x = 91,474.93

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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.