Home / 145,656.18-201,009.33-81,996.30

Finding the Fourth Proportional to 145,656.18, 201,009.33 and 81,996.30

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Solution

The fourth proportional to 145,656.18, 201,009.33 and 81,996.30 is: 113,157.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,656.18 : 201,009.33 = 81,996.30 : x
  2. Step 2: Convert to fraction form
    145,656.18/201,009.33 = 81,996.30/x
  3. Step 3: Cross multiply
    145,656.18x = 201,009.33 × 81,996.30
  4. Step 4: Simplify right side
    145,656.18x = 16,482,021,325.48
  5. Step 5: Solve for x
    x = 16,482,021,325.48/145,656.18
  6. Step 6: Final answer
    x = 113,157.03

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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.