Home / 109,965.49-151,821.08-75,569.47

Finding the Fourth Proportional to 109,965.49, 151,821.08 and 75,569.47

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Solution

The fourth proportional to 109,965.49, 151,821.08 and 75,569.47 is: 104,333.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,965.49 : 151,821.08 = 75,569.47 : x
  2. Step 2: Convert to fraction form
    109,965.49/151,821.08 = 75,569.47/x
  3. Step 3: Cross multiply
    109,965.49x = 151,821.08 × 75,569.47
  4. Step 4: Simplify right side
    109,965.49x = 11,473,038,550.43
  5. Step 5: Solve for x
    x = 11,473,038,550.43/109,965.49
  6. Step 6: Final answer
    x = 104,333.08

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1.5x scale

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.