Home / 106,968.60-147,632.21-61,637.76

Finding the Fourth Proportional to 106,968.60, 147,632.21 and 61,637.76

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Solution

The fourth proportional to 106,968.60, 147,632.21 and 61,637.76 is: 85,069.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,968.60 : 147,632.21 = 61,637.76 : x
  2. Step 2: Convert to fraction form
    106,968.60/147,632.21 = 61,637.76/x
  3. Step 3: Cross multiply
    106,968.60x = 147,632.21 × 61,637.76
  4. Step 4: Simplify right side
    106,968.60x = 9,099,717,681.90
  5. Step 5: Solve for x
    x = 9,099,717,681.90/106,968.60
  6. Step 6: Final answer
    x = 85,069.06

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.