Home / 129,574.29-178,845.93-84,365.22

Finding the Fourth Proportional to 129,574.29, 178,845.93 and 84,365.22

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Solution

The fourth proportional to 129,574.29, 178,845.93 and 84,365.22 is: 116,445.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,574.29 : 178,845.93 = 84,365.22 : x
  2. Step 2: Convert to fraction form
    129,574.29/178,845.93 = 84,365.22/x
  3. Step 3: Cross multiply
    129,574.29x = 178,845.93 × 84,365.22
  4. Step 4: Simplify right side
    129,574.29x = 15,088,376,230.55
  5. Step 5: Solve for x
    x = 15,088,376,230.55/129,574.29
  6. Step 6: Final answer
    x = 116,445.76

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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.