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Finding the Fourth Proportional to 97,438.80, 134,503.56 and 63,915.60

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Solution

The fourth proportional to 97,438.80, 134,503.56 and 63,915.60 is: 88,228.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,438.80 : 134,503.56 = 63,915.60 : x
  2. Step 2: Convert to fraction form
    97,438.80/134,503.56 = 63,915.60/x
  3. Step 3: Cross multiply
    97,438.80x = 134,503.56 × 63,915.60
  4. Step 4: Simplify right side
    97,438.80x = 8,596,875,739.54
  5. Step 5: Solve for x
    x = 8,596,875,739.54/97,438.80
  6. Step 6: Final answer
    x = 88,228.46

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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.