Home / 156,921.01-236,235.37-142,970.65

Finding the Fourth Proportional to 156,921.01, 236,235.37 and 142,970.65

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Solution

The fourth proportional to 156,921.01, 236,235.37 and 142,970.65 is: 215,233.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,921.01 : 236,235.37 = 142,970.65 : x
  2. Step 2: Convert to fraction form
    156,921.01/236,235.37 = 142,970.65/x
  3. Step 3: Cross multiply
    156,921.01x = 236,235.37 × 142,970.65
  4. Step 4: Simplify right side
    156,921.01x = 33,774,724,401.89
  5. Step 5: Solve for x
    x = 33,774,724,401.89/156,921.01
  6. Step 6: Final answer
    x = 215,233.92

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.