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Finding the Fourth Proportional to 124,426.32, 171,712.08 and 67,838.64

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Solution

The fourth proportional to 124,426.32, 171,712.08 and 67,838.64 is: 93,619.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,426.32 : 171,712.08 = 67,838.64 : x
  2. Step 2: Convert to fraction form
    124,426.32/171,712.08 = 67,838.64/x
  3. Step 3: Cross multiply
    124,426.32x = 171,712.08 × 67,838.64
  4. Step 4: Simplify right side
    124,426.32x = 11,648,713,978.77
  5. Step 5: Solve for x
    x = 11,648,713,978.77/124,426.32
  6. Step 6: Final answer
    x = 93,619.37

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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.