Home / 131,941.34-197,955.84-87,742.16

Finding the Fourth Proportional to 131,941.34, 197,955.84 and 87,742.16

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Solution

The fourth proportional to 131,941.34, 197,955.84 and 87,742.16 is: 131,642.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,941.34 : 197,955.84 = 87,742.16 : x
  2. Step 2: Convert to fraction form
    131,941.34/197,955.84 = 87,742.16/x
  3. Step 3: Cross multiply
    131,941.34x = 197,955.84 × 87,742.16
  4. Step 4: Simplify right side
    131,941.34x = 17,369,072,986.21
  5. Step 5: Solve for x
    x = 17,369,072,986.21/131,941.34
  6. Step 6: Final answer
    x = 131,642.39

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1.5x scale

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.