Home / 106,711.03-147,219.96-61,381.81

Finding the Fourth Proportional to 106,711.03, 147,219.96 and 61,381.81

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Solution

The fourth proportional to 106,711.03, 147,219.96 and 61,381.81 is: 84,683.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,711.03 : 147,219.96 = 61,381.81 : x
  2. Step 2: Convert to fraction form
    106,711.03/147,219.96 = 61,381.81/x
  3. Step 3: Cross multiply
    106,711.03x = 147,219.96 × 61,381.81
  4. Step 4: Simplify right side
    106,711.03x = 9,036,627,612.93
  5. Step 5: Solve for x
    x = 9,036,627,612.93/106,711.03
  6. Step 6: Final answer
    x = 84,683.16

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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.