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Finding the Fourth Proportional to 137,038.96, 205,580.62 and 42,246.98

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Solution

The fourth proportional to 137,038.96, 205,580.62 and 42,246.98 is: 63,377.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,038.96 : 205,580.62 = 42,246.98 : x
  2. Step 2: Convert to fraction form
    137,038.96/205,580.62 = 42,246.98/x
  3. Step 3: Cross multiply
    137,038.96x = 205,580.62 × 42,246.98
  4. Step 4: Simplify right side
    137,038.96x = 8,685,160,341.53
  5. Step 5: Solve for x
    x = 8,685,160,341.53/137,038.96
  6. Step 6: Final answer
    x = 63,377.31

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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.