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Finding the Fourth Proportional to 145,863.62, 201,017.00 and 105,508.95

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Solution

The fourth proportional to 145,863.62, 201,017.00 and 105,508.95 is: 145,403.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,863.62 : 201,017.00 = 105,508.95 : x
  2. Step 2: Convert to fraction form
    145,863.62/201,017.00 = 105,508.95/x
  3. Step 3: Cross multiply
    145,863.62x = 201,017.00 × 105,508.95
  4. Step 4: Simplify right side
    145,863.62x = 21,209,092,865.92
  5. Step 5: Solve for x
    x = 21,209,092,865.92/145,863.62
  6. Step 6: Final answer
    x = 145,403.58

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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.