Home / 210,210.20-315,127.82-77,059.38

Finding the Fourth Proportional to 210,210.20, 315,127.82 and 77,059.38

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Solution

The fourth proportional to 210,210.20, 315,127.82 and 77,059.38 is: 115,520.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,210.20 : 315,127.82 = 77,059.38 : x
  2. Step 2: Convert to fraction form
    210,210.20/315,127.82 = 77,059.38/x
  3. Step 3: Cross multiply
    210,210.20x = 315,127.82 × 77,059.38
  4. Step 4: Simplify right side
    210,210.20x = 24,283,554,044.65
  5. Step 5: Solve for x
    x = 24,283,554,044.65/210,210.20
  6. Step 6: Final answer
    x = 115,520.34

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1.5x scale

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.