Home / 105,323.54-145,346.35-56,925.41

Finding the Fourth Proportional to 105,323.54, 145,346.35 and 56,925.41

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Solution

The fourth proportional to 105,323.54, 145,346.35 and 56,925.41 is: 78,556.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,323.54 : 145,346.35 = 56,925.41 : x
  2. Step 2: Convert to fraction form
    105,323.54/145,346.35 = 56,925.41/x
  3. Step 3: Cross multiply
    105,323.54x = 145,346.35 × 56,925.41
  4. Step 4: Simplify right side
    105,323.54x = 8,273,900,281.13
  5. Step 5: Solve for x
    x = 8,273,900,281.13/105,323.54
  6. Step 6: Final answer
    x = 78,556.99

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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.