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Finding the Fourth Proportional to 137,683.80, 190,123.20 and 130,597.92

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Solution

The fourth proportional to 137,683.80, 190,123.20 and 130,597.92 is: 180,338.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,683.80 : 190,123.20 = 130,597.92 : x
  2. Step 2: Convert to fraction form
    137,683.80/190,123.20 = 130,597.92/x
  3. Step 3: Cross multiply
    137,683.80x = 190,123.20 × 130,597.92
  4. Step 4: Simplify right side
    137,683.80x = 24,829,694,463.74
  5. Step 5: Solve for x
    x = 24,829,694,463.74/137,683.80
  6. Step 6: Final answer
    x = 180,338.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.