Home / 142,112.93-213,169.40-42,274.55

Finding the Fourth Proportional to 142,112.93, 213,169.40 and 42,274.55

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Solution

The fourth proportional to 142,112.93, 213,169.40 and 42,274.55 is: 63,411.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,112.93 : 213,169.40 = 42,274.55 : x
  2. Step 2: Convert to fraction form
    142,112.93/213,169.40 = 42,274.55/x
  3. Step 3: Cross multiply
    142,112.93x = 213,169.40 × 42,274.55
  4. Step 4: Simplify right side
    142,112.93x = 9,011,639,181.55
  5. Step 5: Solve for x
    x = 9,011,639,181.55/142,112.93
  6. Step 6: Final answer
    x = 63,411.82

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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.