Home / 147,502.45-221,417.70-91,405.90

Finding the Fourth Proportional to 147,502.45, 221,417.70 and 91,405.90

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Solution

The fourth proportional to 147,502.45, 221,417.70 and 91,405.90 is: 137,210.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,502.45 : 221,417.70 = 91,405.90 : x
  2. Step 2: Convert to fraction form
    147,502.45/221,417.70 = 91,405.90/x
  3. Step 3: Cross multiply
    147,502.45x = 221,417.70 × 91,405.90
  4. Step 4: Simplify right side
    147,502.45x = 20,238,884,144.43
  5. Step 5: Solve for x
    x = 20,238,884,144.43/147,502.45
  6. Step 6: Final answer
    x = 137,210.49

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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.