Home / 129,426.90-194,140.22-40,688.16

Finding the Fourth Proportional to 129,426.90, 194,140.22 and 40,688.16

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Solution

The fourth proportional to 129,426.90, 194,140.22 and 40,688.16 is: 61,032.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,426.90 : 194,140.22 = 40,688.16 : x
  2. Step 2: Convert to fraction form
    129,426.90/194,140.22 = 40,688.16/x
  3. Step 3: Cross multiply
    129,426.90x = 194,140.22 × 40,688.16
  4. Step 4: Simplify right side
    129,426.90x = 7,899,208,130.35
  5. Step 5: Solve for x
    x = 7,899,208,130.35/129,426.90
  6. Step 6: Final answer
    x = 61,032.20

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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.