Home / 107,136.80-160,705.20-89,770.40

Finding the Fourth Proportional to 107,136.80, 160,705.20 and 89,770.40

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Solution

The fourth proportional to 107,136.80, 160,705.20 and 89,770.40 is: 134,655.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,136.80 : 160,705.20 = 89,770.40 : x
  2. Step 2: Convert to fraction form
    107,136.80/160,705.20 = 89,770.40/x
  3. Step 3: Cross multiply
    107,136.80x = 160,705.20 × 89,770.40
  4. Step 4: Simplify right side
    107,136.80x = 14,426,570,086.08
  5. Step 5: Solve for x
    x = 14,426,570,086.08/107,136.80
  6. Step 6: Final answer
    x = 134,655.60

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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.