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Finding the Fourth Proportional to 145,877.73, 201,303.50 and 81,353.60

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Solution

The fourth proportional to 145,877.73, 201,303.50 and 81,353.60 is: 112,263.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,877.73 : 201,303.50 = 81,353.60 : x
  2. Step 2: Convert to fraction form
    145,877.73/201,303.50 = 81,353.60/x
  3. Step 3: Cross multiply
    145,877.73x = 201,303.50 × 81,353.60
  4. Step 4: Simplify right side
    145,877.73x = 16,376,764,445.62
  5. Step 5: Solve for x
    x = 16,376,764,445.62/145,877.73
  6. Step 6: Final answer
    x = 112,263.63

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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.