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Finding the Fourth Proportional to 101,901.87, 152,803.62 and 42,721.65

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Solution

The fourth proportional to 101,901.87, 152,803.62 and 42,721.65 is: 64,061.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,901.87 : 152,803.62 = 42,721.65 : x
  2. Step 2: Convert to fraction form
    101,901.87/152,803.62 = 42,721.65/x
  3. Step 3: Cross multiply
    101,901.87x = 152,803.62 × 42,721.65
  4. Step 4: Simplify right side
    101,901.87x = 6,528,022,772.37
  5. Step 5: Solve for x
    x = 6,528,022,772.37/101,901.87
  6. Step 6: Final answer
    x = 64,061.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.