Home / 145,210.20-217,826.10-51,703.80

Finding the Fourth Proportional to 145,210.20, 217,826.10 and 51,703.80

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Solution

The fourth proportional to 145,210.20, 217,826.10 and 51,703.80 is: 77,559.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,210.20 : 217,826.10 = 51,703.80 : x
  2. Step 2: Convert to fraction form
    145,210.20/217,826.10 = 51,703.80/x
  3. Step 3: Cross multiply
    145,210.20x = 217,826.10 × 51,703.80
  4. Step 4: Simplify right side
    145,210.20x = 11,262,437,109.18
  5. Step 5: Solve for x
    x = 11,262,437,109.18/145,210.20
  6. Step 6: Final answer
    x = 77,559.55

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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.