Home / 142,832.16-214,381.12-72,763.92

Finding the Fourth Proportional to 142,832.16, 214,381.12 and 72,763.92

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Solution

The fourth proportional to 142,832.16, 214,381.12 and 72,763.92 is: 109,213.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,832.16 : 214,381.12 = 72,763.92 : x
  2. Step 2: Convert to fraction form
    142,832.16/214,381.12 = 72,763.92/x
  3. Step 3: Cross multiply
    142,832.16x = 214,381.12 × 72,763.92
  4. Step 4: Simplify right side
    142,832.16x = 15,599,210,665.19
  5. Step 5: Solve for x
    x = 15,599,210,665.19/142,832.16
  6. Step 6: Final answer
    x = 109,213.57

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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.