Home / 106,660.80-147,203.52-61,341.12

Finding the Fourth Proportional to 106,660.80, 147,203.52 and 61,341.12

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Solution

The fourth proportional to 106,660.80, 147,203.52 and 61,341.12 is: 84,657.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,660.80 : 147,203.52 = 61,341.12 : x
  2. Step 2: Convert to fraction form
    106,660.80/147,203.52 = 61,341.12/x
  3. Step 3: Cross multiply
    106,660.80x = 147,203.52 × 61,341.12
  4. Step 4: Simplify right side
    106,660.80x = 9,029,628,784.74
  5. Step 5: Solve for x
    x = 9,029,628,784.74/106,660.80
  6. Step 6: Final answer
    x = 84,657.43

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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.