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Finding the Fourth Proportional to 135,030.40, 202,545.60 and 79,734.40

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Solution

The fourth proportional to 135,030.40, 202,545.60 and 79,734.40 is: 119,601.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,030.40 : 202,545.60 = 79,734.40 : x
  2. Step 2: Convert to fraction form
    135,030.40/202,545.60 = 79,734.40/x
  3. Step 3: Cross multiply
    135,030.40x = 202,545.60 × 79,734.40
  4. Step 4: Simplify right side
    135,030.40x = 16,149,851,888.64
  5. Step 5: Solve for x
    x = 16,149,851,888.64/135,030.40
  6. Step 6: Final answer
    x = 119,601.60

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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.