Home / 105,202.80-157,804.20-42,858.72

Finding the Fourth Proportional to 105,202.80, 157,804.20 and 42,858.72

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Solution

The fourth proportional to 105,202.80, 157,804.20 and 42,858.72 is: 64,288.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,202.80 : 157,804.20 = 42,858.72 : x
  2. Step 2: Convert to fraction form
    105,202.80/157,804.20 = 42,858.72/x
  3. Step 3: Cross multiply
    105,202.80x = 157,804.20 × 42,858.72
  4. Step 4: Simplify right side
    105,202.80x = 6,763,286,022.62
  5. Step 5: Solve for x
    x = 6,763,286,022.62/105,202.80
  6. Step 6: Final answer
    x = 64,288.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.