Home / 142,455.81-213,694.95-47,686.53

Finding the Fourth Proportional to 142,455.81, 213,694.95 and 47,686.53

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Solution

The fourth proportional to 142,455.81, 213,694.95 and 47,686.53 is: 71,533.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,455.81 : 213,694.95 = 47,686.53 : x
  2. Step 2: Convert to fraction form
    142,455.81/213,694.95 = 47,686.53/x
  3. Step 3: Cross multiply
    142,455.81x = 213,694.95 × 47,686.53
  4. Step 4: Simplify right side
    142,455.81x = 10,190,370,644.02
  5. Step 5: Solve for x
    x = 10,190,370,644.02/142,455.81
  6. Step 6: Final answer
    x = 71,533.56

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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.