Home / 102,412.57-153,513.30-39,215.43

Finding the Fourth Proportional to 102,412.57, 153,513.30 and 39,215.43

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Solution

The fourth proportional to 102,412.57, 153,513.30 and 39,215.43 is: 58,782.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,412.57 : 153,513.30 = 39,215.43 : x
  2. Step 2: Convert to fraction form
    102,412.57/153,513.30 = 39,215.43/x
  3. Step 3: Cross multiply
    102,412.57x = 153,513.30 × 39,215.43
  4. Step 4: Simplify right side
    102,412.57x = 6,020,090,070.22
  5. Step 5: Solve for x
    x = 6,020,090,070.22/102,412.57
  6. Step 6: Final answer
    x = 58,782.73

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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.