Home / 145,850.01-201,271.82-81,318.48

Finding the Fourth Proportional to 145,850.01, 201,271.82 and 81,318.48

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Solution

The fourth proportional to 145,850.01, 201,271.82 and 81,318.48 is: 112,218.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,850.01 : 201,271.82 = 81,318.48 : x
  2. Step 2: Convert to fraction form
    145,850.01/201,271.82 = 81,318.48/x
  3. Step 3: Cross multiply
    145,850.01x = 201,271.82 × 81,318.48
  4. Step 4: Simplify right side
    145,850.01x = 16,367,117,762.76
  5. Step 5: Solve for x
    x = 16,367,117,762.76/145,850.01
  6. Step 6: Final answer
    x = 112,218.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.