Home / 105,114.04-145,057.81-57,368.40

Finding the Fourth Proportional to 105,114.04, 145,057.81 and 57,368.40

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Solution

The fourth proportional to 105,114.04, 145,057.81 and 57,368.40 is: 79,168.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,114.04 : 145,057.81 = 57,368.40 : x
  2. Step 2: Convert to fraction form
    105,114.04/145,057.81 = 57,368.40/x
  3. Step 3: Cross multiply
    105,114.04x = 145,057.81 × 57,368.40
  4. Step 4: Simplify right side
    105,114.04x = 8,321,734,467.20
  5. Step 5: Solve for x
    x = 8,321,734,467.20/105,114.04
  6. Step 6: Final answer
    x = 79,168.63

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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.