Home / 112,445.28-168,648.40-42,325.12

Finding the Fourth Proportional to 112,445.28, 168,648.40 and 42,325.12

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Solution

The fourth proportional to 112,445.28, 168,648.40 and 42,325.12 is: 63,480.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,445.28 : 168,648.40 = 42,325.12 : x
  2. Step 2: Convert to fraction form
    112,445.28/168,648.40 = 42,325.12/x
  3. Step 3: Cross multiply
    112,445.28x = 168,648.40 × 42,325.12
  4. Step 4: Simplify right side
    112,445.28x = 7,138,063,767.81
  5. Step 5: Solve for x
    x = 7,138,063,767.81/112,445.28
  6. Step 6: Final answer
    x = 63,480.33

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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.