Home / 236,541.80-354,869.40-78,771.62

Finding the Fourth Proportional to 236,541.80, 354,869.40 and 78,771.62

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Solution

The fourth proportional to 236,541.80, 354,869.40 and 78,771.62 is: 118,176.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,541.80 : 354,869.40 = 78,771.62 : x
  2. Step 2: Convert to fraction form
    236,541.80/354,869.40 = 78,771.62/x
  3. Step 3: Cross multiply
    236,541.80x = 354,869.40 × 78,771.62
  4. Step 4: Simplify right side
    236,541.80x = 27,953,637,526.43
  5. Step 5: Solve for x
    x = 27,953,637,526.43/236,541.80
  6. Step 6: Final answer
    x = 118,176.31

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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.