Home / 170,434.40-255,681.30-70,539.80

Finding the Fourth Proportional to 170,434.40, 255,681.30 and 70,539.80

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Solution

The fourth proportional to 170,434.40, 255,681.30 and 70,539.80 is: 105,821.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,434.40 : 255,681.30 = 70,539.80 : x
  2. Step 2: Convert to fraction form
    170,434.40/255,681.30 = 70,539.80/x
  3. Step 3: Cross multiply
    170,434.40x = 255,681.30 × 70,539.80
  4. Step 4: Simplify right side
    170,434.40x = 18,035,707,765.74
  5. Step 5: Solve for x
    x = 18,035,707,765.74/170,434.40
  6. Step 6: Final answer
    x = 105,821.99

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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.