Home / 105,113.04-145,056.44-57,367.40

Finding the Fourth Proportional to 105,113.04, 145,056.44 and 57,367.40

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Solution

The fourth proportional to 105,113.04, 145,056.44 and 57,367.40 is: 79,167.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,113.04 : 145,056.44 = 57,367.40 : x
  2. Step 2: Convert to fraction form
    105,113.04/145,056.44 = 57,367.40/x
  3. Step 3: Cross multiply
    105,113.04x = 145,056.44 × 57,367.40
  4. Step 4: Simplify right side
    105,113.04x = 8,321,510,816.06
  5. Step 5: Solve for x
    x = 8,321,510,816.06/105,113.04
  6. Step 6: Final answer
    x = 79,167.25

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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.