Home / 112,303.13-168,176.45-87,133.19

Finding the Fourth Proportional to 112,303.13, 168,176.45 and 87,133.19

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Solution

The fourth proportional to 112,303.13, 168,176.45 and 87,133.19 is: 130,483.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,303.13 : 168,176.45 = 87,133.19 : x
  2. Step 2: Convert to fraction form
    112,303.13/168,176.45 = 87,133.19/x
  3. Step 3: Cross multiply
    112,303.13x = 168,176.45 × 87,133.19
  4. Step 4: Simplify right side
    112,303.13x = 14,653,749,948.33
  5. Step 5: Solve for x
    x = 14,653,749,948.33/112,303.13
  6. Step 6: Final answer
    x = 130,483.90

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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.