Home / 105,191.20-145,159.60-57,444.48

Finding the Fourth Proportional to 105,191.20, 145,159.60 and 57,444.48

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Solution

The fourth proportional to 105,191.20, 145,159.60 and 57,444.48 is: 79,271.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,191.20 : 145,159.60 = 57,444.48 : x
  2. Step 2: Convert to fraction form
    105,191.20/145,159.60 = 57,444.48/x
  3. Step 3: Cross multiply
    105,191.20x = 145,159.60 × 57,444.48
  4. Step 4: Simplify right side
    105,191.20x = 8,338,617,739.01
  5. Step 5: Solve for x
    x = 8,338,617,739.01/105,191.20
  6. Step 6: Final answer
    x = 79,271.06

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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.