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Finding the Fourth Proportional to 145,687.02, 200,950.11 and 88,999.98

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Solution

The fourth proportional to 145,687.02, 200,950.11 and 88,999.98 is: 122,760.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,687.02 : 200,950.11 = 88,999.98 : x
  2. Step 2: Convert to fraction form
    145,687.02/200,950.11 = 88,999.98/x
  3. Step 3: Cross multiply
    145,687.02x = 200,950.11 × 88,999.98
  4. Step 4: Simplify right side
    145,687.02x = 17,884,555,771.00
  5. Step 5: Solve for x
    x = 17,884,555,771.00/145,687.02
  6. Step 6: Final answer
    x = 122,760.12

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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.