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Finding the Fourth Proportional to 124,814.30, 187,221.45 and 105,058.40

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Solution

The fourth proportional to 124,814.30, 187,221.45 and 105,058.40 is: 157,587.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,814.30 : 187,221.45 = 105,058.40 : x
  2. Step 2: Convert to fraction form
    124,814.30/187,221.45 = 105,058.40/x
  3. Step 3: Cross multiply
    124,814.30x = 187,221.45 × 105,058.40
  4. Step 4: Simplify right side
    124,814.30x = 19,669,185,982.68
  5. Step 5: Solve for x
    x = 19,669,185,982.68/124,814.30
  6. Step 6: Final answer
    x = 157,587.60

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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.