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Finding the Fourth Proportional to 97,880.80, 137,309.60 and 97,880.80

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Solution

The fourth proportional to 97,880.80, 137,309.60 and 97,880.80 is: 137,309.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,880.80 : 137,309.60 = 97,880.80 : x
  2. Step 2: Convert to fraction form
    97,880.80/137,309.60 = 97,880.80/x
  3. Step 3: Cross multiply
    97,880.80x = 137,309.60 × 97,880.80
  4. Step 4: Simplify right side
    97,880.80x = 13,439,973,495.68
  5. Step 5: Solve for x
    x = 13,439,973,495.68/97,880.80
  6. Step 6: Final answer
    x = 137,309.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.