Home / 112,316.64-168,329.52-45,679.36

Finding the Fourth Proportional to 112,316.64, 168,329.52 and 45,679.36

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Solution

The fourth proportional to 112,316.64, 168,329.52 and 45,679.36 is: 68,459.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,316.64 : 168,329.52 = 45,679.36 : x
  2. Step 2: Convert to fraction form
    112,316.64/168,329.52 = 45,679.36/x
  3. Step 3: Cross multiply
    112,316.64x = 168,329.52 × 45,679.36
  4. Step 4: Simplify right side
    112,316.64x = 7,689,184,742.71
  5. Step 5: Solve for x
    x = 7,689,184,742.71/112,316.64
  6. Step 6: Final answer
    x = 68,459.89

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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.