Home / 219,091.80-328,637.70-124,613.40

Finding the Fourth Proportional to 219,091.80, 328,637.70 and 124,613.40

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Solution

The fourth proportional to 219,091.80, 328,637.70 and 124,613.40 is: 186,920.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,091.80 : 328,637.70 = 124,613.40 : x
  2. Step 2: Convert to fraction form
    219,091.80/328,637.70 = 124,613.40/x
  3. Step 3: Cross multiply
    219,091.80x = 328,637.70 × 124,613.40
  4. Step 4: Simplify right side
    219,091.80x = 40,952,661,165.18
  5. Step 5: Solve for x
    x = 40,952,661,165.18/219,091.80
  6. Step 6: Final answer
    x = 186,920.10

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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.