Home / 112,395.36-168,617.72-42,274.68

Finding the Fourth Proportional to 112,395.36, 168,617.72 and 42,274.68

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Solution

The fourth proportional to 112,395.36, 168,617.72 and 42,274.68 is: 63,421.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,395.36 : 168,617.72 = 42,274.68 : x
  2. Step 2: Convert to fraction form
    112,395.36/168,617.72 = 42,274.68/x
  3. Step 3: Cross multiply
    112,395.36x = 168,617.72 × 42,274.68
  4. Step 4: Simplify right side
    112,395.36x = 7,128,260,155.33
  5. Step 5: Solve for x
    x = 7,128,260,155.33/112,395.36
  6. Step 6: Final answer
    x = 63,421.30

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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.