Home / 109,948.77-151,720.24-64,628.66

Finding the Fourth Proportional to 109,948.77, 151,720.24 and 64,628.66

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Solution

The fourth proportional to 109,948.77, 151,720.24 and 64,628.66 is: 89,182.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,948.77 : 151,720.24 = 64,628.66 : x
  2. Step 2: Convert to fraction form
    109,948.77/151,720.24 = 64,628.66/x
  3. Step 3: Cross multiply
    109,948.77x = 151,720.24 × 64,628.66
  4. Step 4: Simplify right side
    109,948.77x = 9,805,475,718.27
  5. Step 5: Solve for x
    x = 9,805,475,718.27/109,948.77
  6. Step 6: Final answer
    x = 89,182.23

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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.