Home / 105,370.08-145,410.60-57,623.40

Finding the Fourth Proportional to 105,370.08, 145,410.60 and 57,623.40

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Solution

The fourth proportional to 105,370.08, 145,410.60 and 57,623.40 is: 79,520.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,370.08 : 145,410.60 = 57,623.40 : x
  2. Step 2: Convert to fraction form
    105,370.08/145,410.60 = 57,623.40/x
  3. Step 3: Cross multiply
    105,370.08x = 145,410.60 × 57,623.40
  4. Step 4: Simplify right side
    105,370.08x = 8,379,053,168.04
  5. Step 5: Solve for x
    x = 8,379,053,168.04/105,370.08
  6. Step 6: Final answer
    x = 79,520.23

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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.