Home / 105,106.24-145,045.82-57,358.54

Finding the Fourth Proportional to 105,106.24, 145,045.82 and 57,358.54

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Solution

The fourth proportional to 105,106.24, 145,045.82 and 57,358.54 is: 79,154.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,106.24 : 145,045.82 = 57,358.54 : x
  2. Step 2: Convert to fraction form
    105,106.24/145,045.82 = 57,358.54/x
  3. Step 3: Cross multiply
    105,106.24x = 145,045.82 × 57,358.54
  4. Step 4: Simplify right side
    105,106.24x = 8,319,616,468.30
  5. Step 5: Solve for x
    x = 8,319,616,468.30/105,106.24
  6. Step 6: Final answer
    x = 79,154.35

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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.