Home / 88,426.40-122,138.08-64,188.64

Finding the Fourth Proportional to 88,426.40, 122,138.08 and 64,188.64

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Solution

The fourth proportional to 88,426.40, 122,138.08 and 64,188.64 is: 88,659.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,426.40 : 122,138.08 = 64,188.64 : x
  2. Step 2: Convert to fraction form
    88,426.40/122,138.08 = 64,188.64/x
  3. Step 3: Cross multiply
    88,426.40x = 122,138.08 × 64,188.64
  4. Step 4: Simplify right side
    88,426.40x = 7,839,877,247.41
  5. Step 5: Solve for x
    x = 7,839,877,247.41/88,426.40
  6. Step 6: Final answer
    x = 88,659.92

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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.