Home / 109,214.64-150,686.04-61,465.20

Finding the Fourth Proportional to 109,214.64, 150,686.04 and 61,465.20

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Solution

The fourth proportional to 109,214.64, 150,686.04 and 61,465.20 is: 84,805.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,214.64 : 150,686.04 = 61,465.20 : x
  2. Step 2: Convert to fraction form
    109,214.64/150,686.04 = 61,465.20/x
  3. Step 3: Cross multiply
    109,214.64x = 150,686.04 × 61,465.20
  4. Step 4: Simplify right side
    109,214.64x = 9,261,947,585.81
  5. Step 5: Solve for x
    x = 9,261,947,585.81/109,214.64
  6. Step 6: Final answer
    x = 84,805.00

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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.