Home / 147,956.16-221,928.44-81,528

Finding the Fourth Proportional to 147,956.16, 221,928.44 and 81,528

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Solution

The fourth proportional to 147,956.16, 221,928.44 and 81,528 is: 122,288.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,956.16 : 221,928.44 = 81,528 : x
  2. Step 2: Convert to fraction form
    147,956.16/221,928.44 = 81,528/x
  3. Step 3: Cross multiply
    147,956.16x = 221,928.44 × 81,528
  4. Step 4: Simplify right side
    147,956.16x = 18,093,381,856.32
  5. Step 5: Solve for x
    x = 18,093,381,856.32/147,956.16
  6. Step 6: Final answer
    x = 122,288.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.