Home / 115,680.13-159,637.46-64,692.28

Finding the Fourth Proportional to 115,680.13, 159,637.46 and 64,692.28

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Solution

The fourth proportional to 115,680.13, 159,637.46 and 64,692.28 is: 89,274.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,680.13 : 159,637.46 = 64,692.28 : x
  2. Step 2: Convert to fraction form
    115,680.13/159,637.46 = 64,692.28/x
  3. Step 3: Cross multiply
    115,680.13x = 159,637.46 × 64,692.28
  4. Step 4: Simplify right side
    115,680.13x = 10,327,311,260.81
  5. Step 5: Solve for x
    x = 10,327,311,260.81/115,680.13
  6. Step 6: Final answer
    x = 89,274.72

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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.