Home / 147,580.56-221,435.64-77,443.47

Finding the Fourth Proportional to 147,580.56, 221,435.64 and 77,443.47

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Solution

The fourth proportional to 147,580.56, 221,435.64 and 77,443.47 is: 116,199.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,580.56 : 221,435.64 = 77,443.47 : x
  2. Step 2: Convert to fraction form
    147,580.56/221,435.64 = 77,443.47/x
  3. Step 3: Cross multiply
    147,580.56x = 221,435.64 × 77,443.47
  4. Step 4: Simplify right side
    147,580.56x = 17,148,744,343.27
  5. Step 5: Solve for x
    x = 17,148,744,343.27/147,580.56
  6. Step 6: Final answer
    x = 116,199.21

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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.