Home / 211,028.80-316,543.20-70,753.60

Finding the Fourth Proportional to 211,028.80, 316,543.20 and 70,753.60

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Solution

The fourth proportional to 211,028.80, 316,543.20 and 70,753.60 is: 106,130.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,028.80 : 316,543.20 = 70,753.60 : x
  2. Step 2: Convert to fraction form
    211,028.80/316,543.20 = 70,753.60/x
  3. Step 3: Cross multiply
    211,028.80x = 316,543.20 × 70,753.60
  4. Step 4: Simplify right side
    211,028.80x = 22,396,570,955.52
  5. Step 5: Solve for x
    x = 22,396,570,955.52/211,028.80
  6. Step 6: Final answer
    x = 106,130.40

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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.