Home / 147,332.80-221,111.52-107,990.56

Finding the Fourth Proportional to 147,332.80, 221,111.52 and 107,990.56

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Solution

The fourth proportional to 147,332.80, 221,111.52 and 107,990.56 is: 162,068.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,332.80 : 221,111.52 = 107,990.56 : x
  2. Step 2: Convert to fraction form
    147,332.80/221,111.52 = 107,990.56/x
  3. Step 3: Cross multiply
    147,332.80x = 221,111.52 × 107,990.56
  4. Step 4: Simplify right side
    147,332.80x = 23,877,956,867.25
  5. Step 5: Solve for x
    x = 23,877,956,867.25/147,332.80
  6. Step 6: Final answer
    x = 162,068.17

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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.