Home / 105,103.60-145,043.48-57,357.94

Finding the Fourth Proportional to 105,103.60, 145,043.48 and 57,357.94

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Solution

The fourth proportional to 105,103.60, 145,043.48 and 57,357.94 is: 79,154.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,103.60 : 145,043.48 = 57,357.94 : x
  2. Step 2: Convert to fraction form
    105,103.60/145,043.48 = 57,357.94/x
  3. Step 3: Cross multiply
    105,103.60x = 145,043.48 × 57,357.94
  4. Step 4: Simplify right side
    105,103.60x = 8,319,395,223.23
  5. Step 5: Solve for x
    x = 8,319,395,223.23/105,103.60
  6. Step 6: Final answer
    x = 79,154.24

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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.