Home / 142,191.16-196,224.96-78,530.02

Finding the Fourth Proportional to 142,191.16, 196,224.96 and 78,530.02

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Solution

The fourth proportional to 142,191.16, 196,224.96 and 78,530.02 is: 108,372.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,191.16 : 196,224.96 = 78,530.02 : x
  2. Step 2: Convert to fraction form
    142,191.16/196,224.96 = 78,530.02/x
  3. Step 3: Cross multiply
    142,191.16x = 196,224.96 × 78,530.02
  4. Step 4: Simplify right side
    142,191.16x = 15,409,549,837.22
  5. Step 5: Solve for x
    x = 15,409,549,837.22/142,191.16
  6. Step 6: Final answer
    x = 108,372.07

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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.