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Finding the Fourth Proportional to 118,360.71, 163,353.51 and 75,344.58

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Solution

The fourth proportional to 118,360.71, 163,353.51 and 75,344.58 is: 103,985.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,360.71 : 163,353.51 = 75,344.58 : x
  2. Step 2: Convert to fraction form
    118,360.71/163,353.51 = 75,344.58/x
  3. Step 3: Cross multiply
    118,360.71x = 163,353.51 × 75,344.58
  4. Step 4: Simplify right side
    118,360.71x = 12,307,801,602.48
  5. Step 5: Solve for x
    x = 12,307,801,602.48/118,360.71
  6. Step 6: Final answer
    x = 103,985.53

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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.