Home / 134,897.20-202,345.80-71,911.60

Finding the Fourth Proportional to 134,897.20, 202,345.80 and 71,911.60

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Solution

The fourth proportional to 134,897.20, 202,345.80 and 71,911.60 is: 107,867.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,897.20 : 202,345.80 = 71,911.60 : x
  2. Step 2: Convert to fraction form
    134,897.20/202,345.80 = 71,911.60/x
  3. Step 3: Cross multiply
    134,897.20x = 202,345.80 × 71,911.60
  4. Step 4: Simplify right side
    134,897.20x = 14,551,010,231.28
  5. Step 5: Solve for x
    x = 14,551,010,231.28/134,897.20
  6. Step 6: Final answer
    x = 107,867.40

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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.