Home / 145,979.13-201,453.84-85,566.90

Finding the Fourth Proportional to 145,979.13, 201,453.84 and 85,566.90

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Solution

The fourth proportional to 145,979.13, 201,453.84 and 85,566.90 is: 118,083.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,979.13 : 201,453.84 = 85,566.90 : x
  2. Step 2: Convert to fraction form
    145,979.13/201,453.84 = 85,566.90/x
  3. Step 3: Cross multiply
    145,979.13x = 201,453.84 × 85,566.90
  4. Step 4: Simplify right side
    145,979.13x = 17,237,780,581.90
  5. Step 5: Solve for x
    x = 17,237,780,581.90/145,979.13
  6. Step 6: Final answer
    x = 118,083.87

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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.