Home / 281,041.48-387,834.42-153,719.56

Finding the Fourth Proportional to 281,041.48, 387,834.42 and 153,719.56

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Solution

The fourth proportional to 281,041.48, 387,834.42 and 153,719.56 is: 212,131.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,041.48 : 387,834.42 = 153,719.56 : x
  2. Step 2: Convert to fraction form
    281,041.48/387,834.42 = 153,719.56/x
  3. Step 3: Cross multiply
    281,041.48x = 387,834.42 × 153,719.56
  4. Step 4: Simplify right side
    281,041.48x = 59,617,736,395.26
  5. Step 5: Solve for x
    x = 59,617,736,395.26/281,041.48
  6. Step 6: Final answer
    x = 212,131.45

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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.