Home / 135,094.04-186,452.93-78,538.22

Finding the Fourth Proportional to 135,094.04, 186,452.93 and 78,538.22

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Solution

The fourth proportional to 135,094.04, 186,452.93 and 78,538.22 is: 108,396.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,094.04 : 186,452.93 = 78,538.22 : x
  2. Step 2: Convert to fraction form
    135,094.04/186,452.93 = 78,538.22/x
  3. Step 3: Cross multiply
    135,094.04x = 186,452.93 × 78,538.22
  4. Step 4: Simplify right side
    135,094.04x = 14,643,681,235.98
  5. Step 5: Solve for x
    x = 14,643,681,235.98/135,094.04
  6. Step 6: Final answer
    x = 108,396.20

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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.