Home / 142,171.95-213,186.59-47,368.79

Finding the Fourth Proportional to 142,171.95, 213,186.59 and 47,368.79

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Solution

The fourth proportional to 142,171.95, 213,186.59 and 47,368.79 is: 71,029.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,171.95 : 213,186.59 = 47,368.79 : x
  2. Step 2: Convert to fraction form
    142,171.95/213,186.59 = 47,368.79/x
  3. Step 3: Cross multiply
    142,171.95x = 213,186.59 × 47,368.79
  4. Step 4: Simplify right side
    142,171.95x = 10,098,389,509.75
  5. Step 5: Solve for x
    x = 10,098,389,509.75/142,171.95
  6. Step 6: Final answer
    x = 71,029.41

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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.