Home / 112,337.28-168,480-42,223.68

Finding the Fourth Proportional to 112,337.28, 168,480 and 42,223.68

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Solution

The fourth proportional to 112,337.28, 168,480 and 42,223.68 is: 63,325.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,337.28 : 168,480 = 42,223.68 : x
  2. Step 2: Convert to fraction form
    112,337.28/168,480 = 42,223.68/x
  3. Step 3: Cross multiply
    112,337.28x = 168,480 × 42,223.68
  4. Step 4: Simplify right side
    112,337.28x = 7,113,845,606.40
  5. Step 5: Solve for x
    x = 7,113,845,606.40/112,337.28
  6. Step 6: Final answer
    x = 63,325.78

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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.