Home / 106,763.28-147,339-61,448.16

Finding the Fourth Proportional to 106,763.28, 147,339 and 61,448.16

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Solution

The fourth proportional to 106,763.28, 147,339 and 61,448.16 is: 84,801.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,763.28 : 147,339 = 61,448.16 : x
  2. Step 2: Convert to fraction form
    106,763.28/147,339 = 61,448.16/x
  3. Step 3: Cross multiply
    106,763.28x = 147,339 × 61,448.16
  4. Step 4: Simplify right side
    106,763.28x = 9,053,710,446.24
  5. Step 5: Solve for x
    x = 9,053,710,446.24/106,763.28
  6. Step 6: Final answer
    x = 84,801.73

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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.