Home / 118,325.62-163,307.28-72,411.58

Finding the Fourth Proportional to 118,325.62, 163,307.28 and 72,411.58

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Solution

The fourth proportional to 118,325.62, 163,307.28 and 72,411.58 is: 99,938.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,325.62 : 163,307.28 = 72,411.58 : x
  2. Step 2: Convert to fraction form
    118,325.62/163,307.28 = 72,411.58/x
  3. Step 3: Cross multiply
    118,325.62x = 163,307.28 × 72,411.58
  4. Step 4: Simplify right side
    118,325.62x = 11,825,338,170.30
  5. Step 5: Solve for x
    x = 11,825,338,170.30/118,325.62
  6. Step 6: Final answer
    x = 99,938.95

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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.