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Finding the Fourth Proportional to 118,402.70, 163,395.63 and 67,412.79

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Solution

The fourth proportional to 118,402.70, 163,395.63 and 67,412.79 is: 93,029.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,402.70 : 163,395.63 = 67,412.79 : x
  2. Step 2: Convert to fraction form
    118,402.70/163,395.63 = 67,412.79/x
  3. Step 3: Cross multiply
    118,402.70x = 163,395.63 × 67,412.79
  4. Step 4: Simplify right side
    118,402.70x = 11,014,955,292.11
  5. Step 5: Solve for x
    x = 11,014,955,292.11/118,402.70
  6. Step 6: Final answer
    x = 93,029.60

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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.