Home / 142,097,743.72-196,098,707.46-86,324,189.32

Finding the Fourth Proportional to 142,097,743.72, 196,098,707.46 and 86,324,189.32

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Solution

The fourth proportional to 142,097,743.72, 196,098,707.46 and 86,324,189.32 is: 119,129,702.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,097,743.72 : 196,098,707.46 = 86,324,189.32 : x
  2. Step 2: Convert to fraction form
    142,097,743.72/196,098,707.46 = 86,324,189.32/x
  3. Step 3: Cross multiply
    142,097,743.72x = 196,098,707.46 × 86,324,189.32
  4. Step 4: Simplify right side
    142,097,743.72x = 16,928,061,948,184,336
  5. Step 5: Solve for x
    x = 16,928,061,948,184,336/142,097,743.72
  6. Step 6: Final answer
    x = 119,129,702.59

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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.