Home / 130,143.08-179,577.32-76,423.08

Finding the Fourth Proportional to 130,143.08, 179,577.32 and 76,423.08

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Solution

The fourth proportional to 130,143.08, 179,577.32 and 76,423.08 is: 105,452.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,143.08 : 179,577.32 = 76,423.08 : x
  2. Step 2: Convert to fraction form
    130,143.08/179,577.32 = 76,423.08/x
  3. Step 3: Cross multiply
    130,143.08x = 179,577.32 × 76,423.08
  4. Step 4: Simplify right side
    130,143.08x = 13,723,851,892.55
  5. Step 5: Solve for x
    x = 13,723,851,892.55/130,143.08
  6. Step 6: Final answer
    x = 105,452.03

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1.5x scale

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.