Home / 102,422.40-153,567.60-70,743.36

Finding the Fourth Proportional to 102,422.40, 153,567.60 and 70,743.36

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Solution

The fourth proportional to 102,422.40, 153,567.60 and 70,743.36 is: 106,069.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,422.40 : 153,567.60 = 70,743.36 : x
  2. Step 2: Convert to fraction form
    102,422.40/153,567.60 = 70,743.36/x
  3. Step 3: Cross multiply
    102,422.40x = 153,567.60 × 70,743.36
  4. Step 4: Simplify right side
    102,422.40x = 10,863,888,011.14
  5. Step 5: Solve for x
    x = 10,863,888,011.14/102,422.40
  6. Step 6: Final answer
    x = 106,069.45

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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.