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Finding the Fourth Proportional to 145,900.67, 218,851.00 and 112,669.20

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Solution

The fourth proportional to 145,900.67, 218,851.00 and 112,669.20 is: 169,003.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,900.67 : 218,851.00 = 112,669.20 : x
  2. Step 2: Convert to fraction form
    145,900.67/218,851.00 = 112,669.20/x
  3. Step 3: Cross multiply
    145,900.67x = 218,851.00 × 112,669.20
  4. Step 4: Simplify right side
    145,900.67x = 24,657,766,807.53
  5. Step 5: Solve for x
    x = 24,657,766,807.53/145,900.67
  6. Step 6: Final answer
    x = 169,003.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.