Home / 115,464.84-159,282.78-70,130.76

Finding the Fourth Proportional to 115,464.84, 159,282.78 and 70,130.76

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Solution

The fourth proportional to 115,464.84, 159,282.78 and 70,130.76 is: 96,744.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,464.84 : 159,282.78 = 70,130.76 : x
  2. Step 2: Convert to fraction form
    115,464.84/159,282.78 = 70,130.76/x
  3. Step 3: Cross multiply
    115,464.84x = 159,282.78 × 70,130.76
  4. Step 4: Simplify right side
    115,464.84x = 11,170,622,416.31
  5. Step 5: Solve for x
    x = 11,170,622,416.31/115,464.84
  6. Step 6: Final answer
    x = 96,744.80

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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.