Home / 142,872.04-214,100.70-80,409.16

Finding the Fourth Proportional to 142,872.04, 214,100.70 and 80,409.16

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Solution

The fourth proportional to 142,872.04, 214,100.70 and 80,409.16 is: 120,497.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,872.04 : 214,100.70 = 80,409.16 : x
  2. Step 2: Convert to fraction form
    142,872.04/214,100.70 = 80,409.16/x
  3. Step 3: Cross multiply
    142,872.04x = 214,100.70 × 80,409.16
  4. Step 4: Simplify right side
    142,872.04x = 17,215,657,442.41
  5. Step 5: Solve for x
    x = 17,215,657,442.41/142,872.04
  6. Step 6: Final answer
    x = 120,497.04

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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.