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Finding the Fourth Proportional to 145,572.63, 218,009.03 and 83,053.59

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Solution

The fourth proportional to 145,572.63, 218,009.03 and 83,053.59 is: 124,380.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,572.63 : 218,009.03 = 83,053.59 : x
  2. Step 2: Convert to fraction form
    145,572.63/218,009.03 = 83,053.59/x
  3. Step 3: Cross multiply
    145,572.63x = 218,009.03 × 83,053.59
  4. Step 4: Simplify right side
    145,572.63x = 18,106,432,178.65
  5. Step 5: Solve for x
    x = 18,106,432,178.65/145,572.63
  6. Step 6: Final answer
    x = 124,380.75

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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.