Home / 142,541.10-196,693.36-85,169

Finding the Fourth Proportional to 142,541.10, 196,693.36 and 85,169

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Solution

The fourth proportional to 142,541.10, 196,693.36 and 85,169 is: 117,525.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,541.10 : 196,693.36 = 85,169 : x
  2. Step 2: Convert to fraction form
    142,541.10/196,693.36 = 85,169/x
  3. Step 3: Cross multiply
    142,541.10x = 196,693.36 × 85,169
  4. Step 4: Simplify right side
    142,541.10x = 16,752,176,777.84
  5. Step 5: Solve for x
    x = 16,752,176,777.84/142,541.10
  6. Step 6: Final answer
    x = 117,525.24

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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.