Home / 106,820.29-147,449.09-61,516.32

Finding the Fourth Proportional to 106,820.29, 147,449.09 and 61,516.32

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Solution

The fourth proportional to 106,820.29, 147,449.09 and 61,516.32 is: 84,913.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,820.29 : 147,449.09 = 61,516.32 : x
  2. Step 2: Convert to fraction form
    106,820.29/147,449.09 = 61,516.32/x
  3. Step 3: Cross multiply
    106,820.29x = 147,449.09 × 61,516.32
  4. Step 4: Simplify right side
    106,820.29x = 9,070,525,404.15
  5. Step 5: Solve for x
    x = 9,070,525,404.15/106,820.29
  6. Step 6: Final answer
    x = 84,913.88

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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.