Home / 437,566.20-656,349.30-105,142.20

Finding the Fourth Proportional to 437,566.20, 656,349.30 and 105,142.20

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Solution

The fourth proportional to 437,566.20, 656,349.30 and 105,142.20 is: 157,713.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,566.20 : 656,349.30 = 105,142.20 : x
  2. Step 2: Convert to fraction form
    437,566.20/656,349.30 = 105,142.20/x
  3. Step 3: Cross multiply
    437,566.20x = 656,349.30 × 105,142.20
  4. Step 4: Simplify right side
    437,566.20x = 69,010,009,370.46
  5. Step 5: Solve for x
    x = 69,010,009,370.46/437,566.20
  6. Step 6: Final answer
    x = 157,713.30

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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.