Home / 131,688.37-197,564-42,941.96

Finding the Fourth Proportional to 131,688.37, 197,564 and 42,941.96

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Solution

The fourth proportional to 131,688.37, 197,564 and 42,941.96 is: 64,423.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,688.37 : 197,564 = 42,941.96 : x
  2. Step 2: Convert to fraction form
    131,688.37/197,564 = 42,941.96/x
  3. Step 3: Cross multiply
    131,688.37x = 197,564 × 42,941.96
  4. Step 4: Simplify right side
    131,688.37x = 8,483,785,385.44
  5. Step 5: Solve for x
    x = 8,483,785,385.44/131,688.37
  6. Step 6: Final answer
    x = 64,423.19

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.