Home / 115,345.40-173,018.10-70,827.80

Finding the Fourth Proportional to 115,345.40, 173,018.10 and 70,827.80

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Solution

The fourth proportional to 115,345.40, 173,018.10 and 70,827.80 is: 106,241.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,345.40 : 173,018.10 = 70,827.80 : x
  2. Step 2: Convert to fraction form
    115,345.40/173,018.10 = 70,827.80/x
  3. Step 3: Cross multiply
    115,345.40x = 173,018.10 × 70,827.80
  4. Step 4: Simplify right side
    115,345.40x = 12,254,491,383.18
  5. Step 5: Solve for x
    x = 12,254,491,383.18/115,345.40
  6. Step 6: Final answer
    x = 106,241.70

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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.