Home / 156,748.04-216,313.89-85,129.46

Finding the Fourth Proportional to 156,748.04, 216,313.89 and 85,129.46

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Solution

The fourth proportional to 156,748.04, 216,313.89 and 85,129.46 is: 117,479.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,748.04 : 216,313.89 = 85,129.46 : x
  2. Step 2: Convert to fraction form
    156,748.04/216,313.89 = 85,129.46/x
  3. Step 3: Cross multiply
    156,748.04x = 216,313.89 × 85,129.46
  4. Step 4: Simplify right side
    156,748.04x = 18,414,685,186.98
  5. Step 5: Solve for x
    x = 18,414,685,186.98/156,748.04
  6. Step 6: Final answer
    x = 117,479.52

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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.