Home / 98,995.04-148,166.40-85,309.28

Finding the Fourth Proportional to 98,995.04, 148,166.40 and 85,309.28

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Solution

The fourth proportional to 98,995.04, 148,166.40 and 85,309.28 is: 127,682.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,995.04 : 148,166.40 = 85,309.28 : x
  2. Step 2: Convert to fraction form
    98,995.04/148,166.40 = 85,309.28/x
  3. Step 3: Cross multiply
    98,995.04x = 148,166.40 × 85,309.28
  4. Step 4: Simplify right side
    98,995.04x = 12,639,968,904.19
  5. Step 5: Solve for x
    x = 12,639,968,904.19/98,995.04
  6. Step 6: Final answer
    x = 127,682.85

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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.