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Finding the Fourth Proportional to 145,693.13, 201,062.00 and 80,284.72

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Solution

The fourth proportional to 145,693.13, 201,062.00 and 80,284.72 is: 110,795.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,693.13 : 201,062.00 = 80,284.72 : x
  2. Step 2: Convert to fraction form
    145,693.13/201,062.00 = 80,284.72/x
  3. Step 3: Cross multiply
    145,693.13x = 201,062.00 × 80,284.72
  4. Step 4: Simplify right side
    145,693.13x = 16,142,205,996.09
  5. Step 5: Solve for x
    x = 16,142,205,996.09/145,693.13
  6. Step 6: Final answer
    x = 110,795.93

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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.