Home / 123,546.70-185,320.05-81,483.40

Finding the Fourth Proportional to 123,546.70, 185,320.05 and 81,483.40

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Solution

The fourth proportional to 123,546.70, 185,320.05 and 81,483.40 is: 122,225.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,546.70 : 185,320.05 = 81,483.40 : x
  2. Step 2: Convert to fraction form
    123,546.70/185,320.05 = 81,483.40/x
  3. Step 3: Cross multiply
    123,546.70x = 185,320.05 × 81,483.40
  4. Step 4: Simplify right side
    123,546.70x = 15,100,507,762.17
  5. Step 5: Solve for x
    x = 15,100,507,762.17/123,546.70
  6. Step 6: Final answer
    x = 122,225.10

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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.