Home / 100,767.33-139,058.91-55,444.35

Finding the Fourth Proportional to 100,767.33, 139,058.91 and 55,444.35

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Solution

The fourth proportional to 100,767.33, 139,058.91 and 55,444.35 is: 76,513.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,767.33 : 139,058.91 = 55,444.35 : x
  2. Step 2: Convert to fraction form
    100,767.33/139,058.91 = 55,444.35/x
  3. Step 3: Cross multiply
    100,767.33x = 139,058.91 × 55,444.35
  4. Step 4: Simplify right side
    100,767.33x = 7,710,030,876.66
  5. Step 5: Solve for x
    x = 7,710,030,876.66/100,767.33
  6. Step 6: Final answer
    x = 76,513.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.