Home / 170,411.40-255,617.10-107,425.80

Finding the Fourth Proportional to 170,411.40, 255,617.10 and 107,425.80

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Solution

The fourth proportional to 170,411.40, 255,617.10 and 107,425.80 is: 161,138.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,411.40 : 255,617.10 = 107,425.80 : x
  2. Step 2: Convert to fraction form
    170,411.40/255,617.10 = 107,425.80/x
  3. Step 3: Cross multiply
    170,411.40x = 255,617.10 × 107,425.80
  4. Step 4: Simplify right side
    170,411.40x = 27,459,871,461.18
  5. Step 5: Solve for x
    x = 27,459,871,461.18/170,411.40
  6. Step 6: Final answer
    x = 161,138.70

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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.