Home / 129,070.64-193,499.34-56,972.19

Finding the Fourth Proportional to 129,070.64, 193,499.34 and 56,972.19

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Solution

The fourth proportional to 129,070.64, 193,499.34 and 56,972.19 is: 85,411.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,070.64 : 193,499.34 = 56,972.19 : x
  2. Step 2: Convert to fraction form
    129,070.64/193,499.34 = 56,972.19/x
  3. Step 3: Cross multiply
    129,070.64x = 193,499.34 × 56,972.19
  4. Step 4: Simplify right side
    129,070.64x = 11,024,081,835.57
  5. Step 5: Solve for x
    x = 11,024,081,835.57/129,070.64
  6. Step 6: Final answer
    x = 85,411.23

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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.