Home / 109,901.70-151,669.80-64,582.20

Finding the Fourth Proportional to 109,901.70, 151,669.80 and 64,582.20

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Solution

The fourth proportional to 109,901.70, 151,669.80 and 64,582.20 is: 89,126.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,901.70 : 151,669.80 = 64,582.20 : x
  2. Step 2: Convert to fraction form
    109,901.70/151,669.80 = 64,582.20/x
  3. Step 3: Cross multiply
    109,901.70x = 151,669.80 × 64,582.20
  4. Step 4: Simplify right side
    109,901.70x = 9,795,169,357.56
  5. Step 5: Solve for x
    x = 9,795,169,357.56/109,901.70
  6. Step 6: Final answer
    x = 89,126.64

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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.