Home / 143,419.10-215,128.65-110,306.30

Finding the Fourth Proportional to 143,419.10, 215,128.65 and 110,306.30

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Solution

The fourth proportional to 143,419.10, 215,128.65 and 110,306.30 is: 165,459.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,419.10 : 215,128.65 = 110,306.30 : x
  2. Step 2: Convert to fraction form
    143,419.10/215,128.65 = 110,306.30/x
  3. Step 3: Cross multiply
    143,419.10x = 215,128.65 × 110,306.30
  4. Step 4: Simplify right side
    143,419.10x = 23,730,045,405.50
  5. Step 5: Solve for x
    x = 23,730,045,405.50/143,419.10
  6. Step 6: Final answer
    x = 165,459.45

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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.