Home / 142,154.80-213,231.15-57,895.16

Finding the Fourth Proportional to 142,154.80, 213,231.15 and 57,895.16

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Solution

The fourth proportional to 142,154.80, 213,231.15 and 57,895.16 is: 86,842.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,154.80 : 213,231.15 = 57,895.16 : x
  2. Step 2: Convert to fraction form
    142,154.80/213,231.15 = 57,895.16/x
  3. Step 3: Cross multiply
    142,154.80x = 213,231.15 × 57,895.16
  4. Step 4: Simplify right side
    142,154.80x = 12,345,050,480.08
  5. Step 5: Solve for x
    x = 12,345,050,480.08/142,154.80
  6. Step 6: Final answer
    x = 86,842.31

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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.