Home / 105,113.10-145,056.48-57,367.50

Finding the Fourth Proportional to 105,113.10, 145,056.48 and 57,367.50

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Solution

The fourth proportional to 105,113.10, 145,056.48 and 57,367.50 is: 79,167.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,113.10 : 145,056.48 = 57,367.50 : x
  2. Step 2: Convert to fraction form
    105,113.10/145,056.48 = 57,367.50/x
  3. Step 3: Cross multiply
    105,113.10x = 145,056.48 × 57,367.50
  4. Step 4: Simplify right side
    105,113.10x = 8,321,527,616.40
  5. Step 5: Solve for x
    x = 8,321,527,616.40/105,113.10
  6. Step 6: Final answer
    x = 79,167.37

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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.