Home / 134,322.90-201,419.69-78,175.59

Finding the Fourth Proportional to 134,322.90, 201,419.69 and 78,175.59

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Solution

The fourth proportional to 134,322.90, 201,419.69 and 78,175.59 is: 117,225.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,322.90 : 201,419.69 = 78,175.59 : x
  2. Step 2: Convert to fraction form
    134,322.90/201,419.69 = 78,175.59/x
  3. Step 3: Cross multiply
    134,322.90x = 201,419.69 × 78,175.59
  4. Step 4: Simplify right side
    134,322.90x = 15,746,102,712.49
  5. Step 5: Solve for x
    x = 15,746,102,712.49/134,322.90
  6. Step 6: Final answer
    x = 117,225.75

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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.