Home / 100,475.04-138,643.80-59,632.92

Finding the Fourth Proportional to 100,475.04, 138,643.80 and 59,632.92

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Solution

The fourth proportional to 100,475.04, 138,643.80 and 59,632.92 is: 82,286.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,475.04 : 138,643.80 = 59,632.92 : x
  2. Step 2: Convert to fraction form
    100,475.04/138,643.80 = 59,632.92/x
  3. Step 3: Cross multiply
    100,475.04x = 138,643.80 × 59,632.92
  4. Step 4: Simplify right side
    100,475.04x = 8,267,734,633.90
  5. Step 5: Solve for x
    x = 8,267,734,633.90/100,475.04
  6. Step 6: Final answer
    x = 82,286.45

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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.