Home / 109,501.18-151,203.72-73,809.34

Finding the Fourth Proportional to 109,501.18, 151,203.72 and 73,809.34

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Solution

The fourth proportional to 109,501.18, 151,203.72 and 73,809.34 is: 101,918.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,501.18 : 151,203.72 = 73,809.34 : x
  2. Step 2: Convert to fraction form
    109,501.18/151,203.72 = 73,809.34/x
  3. Step 3: Cross multiply
    109,501.18x = 151,203.72 × 73,809.34
  4. Step 4: Simplify right side
    109,501.18x = 11,160,246,778.74
  5. Step 5: Solve for x
    x = 11,160,246,778.74/109,501.18
  6. Step 6: Final answer
    x = 101,918.96

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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.