Home / 139,929.22-193,106.40-76,271.14

Finding the Fourth Proportional to 139,929.22, 193,106.40 and 76,271.14

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Solution

The fourth proportional to 139,929.22, 193,106.40 and 76,271.14 is: 105,256.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,929.22 : 193,106.40 = 76,271.14 : x
  2. Step 2: Convert to fraction form
    139,929.22/193,106.40 = 76,271.14/x
  3. Step 3: Cross multiply
    139,929.22x = 193,106.40 × 76,271.14
  4. Step 4: Simplify right side
    139,929.22x = 14,728,445,269.30
  5. Step 5: Solve for x
    x = 14,728,445,269.30/139,929.22
  6. Step 6: Final answer
    x = 105,256.40

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.