Home / 109,420.13-151,124.31-73,547.87

Finding the Fourth Proportional to 109,420.13, 151,124.31 and 73,547.87

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Solution

The fourth proportional to 109,420.13, 151,124.31 and 73,547.87 is: 101,579.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,420.13 : 151,124.31 = 73,547.87 : x
  2. Step 2: Convert to fraction form
    109,420.13/151,124.31 = 73,547.87/x
  3. Step 3: Cross multiply
    109,420.13x = 151,124.31 × 73,547.87
  4. Step 4: Simplify right side
    109,420.13x = 11,114,870,350.10
  5. Step 5: Solve for x
    x = 11,114,870,350.10/109,420.13
  6. Step 6: Final answer
    x = 101,579.76

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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.