Home / 112,283.10-168,278.40-45,645.48

Finding the Fourth Proportional to 112,283.10, 168,278.40 and 45,645.48

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Solution

The fourth proportional to 112,283.10, 168,278.40 and 45,645.48 is: 68,408.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,283.10 : 168,278.40 = 45,645.48 : x
  2. Step 2: Convert to fraction form
    112,283.10/168,278.40 = 45,645.48/x
  3. Step 3: Cross multiply
    112,283.10x = 168,278.40 × 45,645.48
  4. Step 4: Simplify right side
    112,283.10x = 7,681,148,341.63
  5. Step 5: Solve for x
    x = 7,681,148,341.63/112,283.10
  6. Step 6: Final answer
    x = 68,408.77

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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.