Home / 105,488.57-145,574.37-57,744.93

Finding the Fourth Proportional to 105,488.57, 145,574.37 and 57,744.93

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Solution

The fourth proportional to 105,488.57, 145,574.37 and 57,744.93 is: 79,688.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,488.57 : 145,574.37 = 57,744.93 : x
  2. Step 2: Convert to fraction form
    105,488.57/145,574.37 = 57,744.93/x
  3. Step 3: Cross multiply
    105,488.57x = 145,574.37 × 57,744.93
  4. Step 4: Simplify right side
    105,488.57x = 8,406,181,805.44
  5. Step 5: Solve for x
    x = 8,406,181,805.44/105,488.57
  6. Step 6: Final answer
    x = 79,688.09

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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.