Home / 115,810.35-159,795.57-72,764.91

Finding the Fourth Proportional to 115,810.35, 159,795.57 and 72,764.91

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Solution

The fourth proportional to 115,810.35, 159,795.57 and 72,764.91 is: 100,401.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,810.35 : 159,795.57 = 72,764.91 : x
  2. Step 2: Convert to fraction form
    115,810.35/159,795.57 = 72,764.91/x
  3. Step 3: Cross multiply
    115,810.35x = 159,795.57 × 72,764.91
  4. Step 4: Simplify right side
    115,810.35x = 11,627,509,875.45
  5. Step 5: Solve for x
    x = 11,627,509,875.45/115,810.35
  6. Step 6: Final answer
    x = 100,401.30

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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.