Home / 98,810.56-148,109.64-42,677.20

Finding the Fourth Proportional to 98,810.56, 148,109.64 and 42,677.20

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Solution

The fourth proportional to 98,810.56, 148,109.64 and 42,677.20 is: 63,969.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,810.56 : 148,109.64 = 42,677.20 : x
  2. Step 2: Convert to fraction form
    98,810.56/148,109.64 = 42,677.20/x
  3. Step 3: Cross multiply
    98,810.56x = 148,109.64 × 42,677.20
  4. Step 4: Simplify right side
    98,810.56x = 6,320,904,728.21
  5. Step 5: Solve for x
    x = 6,320,904,728.21/98,810.56
  6. Step 6: Final answer
    x = 63,969.93

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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.