Home / 106,712.03-147,221.34-61,382.81

Finding the Fourth Proportional to 106,712.03, 147,221.34 and 61,382.81

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Solution

The fourth proportional to 106,712.03, 147,221.34 and 61,382.81 is: 84,684.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,712.03 : 147,221.34 = 61,382.81 : x
  2. Step 2: Convert to fraction form
    106,712.03/147,221.34 = 61,382.81/x
  3. Step 3: Cross multiply
    106,712.03x = 147,221.34 × 61,382.81
  4. Step 4: Simplify right side
    106,712.03x = 9,036,859,541.17
  5. Step 5: Solve for x
    x = 9,036,859,541.17/106,712.03
  6. Step 6: Final answer
    x = 84,684.54

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1.5x scale

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.