Home / 102,542.40-153,813.60-62,971.20

Finding the Fourth Proportional to 102,542.40, 153,813.60 and 62,971.20

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Solution

The fourth proportional to 102,542.40, 153,813.60 and 62,971.20 is: 94,456.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,542.40 : 153,813.60 = 62,971.20 : x
  2. Step 2: Convert to fraction form
    102,542.40/153,813.60 = 62,971.20/x
  3. Step 3: Cross multiply
    102,542.40x = 153,813.60 × 62,971.20
  4. Step 4: Simplify right side
    102,542.40x = 9,685,826,968.32
  5. Step 5: Solve for x
    x = 9,685,826,968.32/102,542.40
  6. Step 6: Final answer
    x = 94,456.80

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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.