Home / 145,618.81-218,428.02-45,787.73

Finding the Fourth Proportional to 145,618.81, 218,428.02 and 45,787.73

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Solution

The fourth proportional to 145,618.81, 218,428.02 and 45,787.73 is: 68,681.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,618.81 : 218,428.02 = 45,787.73 : x
  2. Step 2: Convert to fraction form
    145,618.81/218,428.02 = 45,787.73/x
  3. Step 3: Cross multiply
    145,618.81x = 218,428.02 × 45,787.73
  4. Step 4: Simplify right side
    145,618.81x = 10,001,323,204.19
  5. Step 5: Solve for x
    x = 10,001,323,204.19/145,618.81
  6. Step 6: Final answer
    x = 68,681.54

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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.